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Displaying items by tag: Climate Change

#RisingSeaLevels - Rising sea levels around Ireland due to climate change are almost 7cm since the early 1990s.

The Irish Examiner writes that this is due to the rising temperature of the planet, greenhouse gas emissions (GHGs) and the melting of glaciers.

And the next five to 15 years is a crucial time period within which to act if we want to halt any permanent changes to the planet.

According to the Environmental Protection Agency (EPA), climate change is most obvious in our changing sea levels.

The newspaper also writes that the number of high quality rivers has halved.

“Observed climate change impacts are most evident in the global temperature record, sea-level rise, loss of glaciers and ice sheets and changes in the nature and intensification of precipitation events,” the EPA report states.

“Since 1993, average sea level has risen around Ireland by just over 3cm per decade,” the report reads.

For further coverage the newspaper has more here 

Published in Weather

#MarineScience - Applications are invited from postgraduate students of marine science, atmosphere and climate-based sciences worldwide to participate in the Atlantic Ocean Climate Scholars Programme in Galway from 12-20 September 2016.

This intensive, accredited workshop will examine how climate and oceans interact, with particular examples from the Atlantic Ocean and higher latitudes.

The programme will be led by an international team of research leaders in climate science with contributions from policy makers and researchers in the field.

A number of scholarships are available to cover travel and accommodation expenses and the deadline for applications is this Friday 3 June 2016.

The relationships between human activities and the oceanic and atmospheric processes that drive our climate will be investigated in the context of the latest IPCC Assessment Report published in 2013.

Critical elements of the global climate system will be scrutinised with special reference to the Atlantic Ocean and its ecosystems. Ocean observation programmes, new technologies, and model outputs will be evaluated in the context of societal and governmental responses to climate change.

Workshop activities will include presentations, field trips and practical data sessions.

Applicants can apply online until 1800 UTC on Friday 3 June. Further information is available by emailing [email protected] or [email protected].

The Atlantic Ocean Climate Scholars Programme is a collaboration between the Strategic Marine Alliance for Research & Training (SMART) based in GMIT, NUI Galway, the Alfred Wegener Institute (AWI), the Partnership for the Observation of the Global Ocean (POGO), the Helmholtz Climate Programme REKLIM and is supported by the Nippon Foundation.

Published in Marine Science

#ClimateChange - Models to predict the future climate indicate that global temperatures will rise by an average of as much as 4.5C by the end of this century, bringing a rise in sea levels and changes to rainfall patterns.

And these changes in the weather are already being felt in Ireland, according to Met Éireann's head of climatology Séamus Walsh, who says that even slight shifts, such as an increase in the number of warm days over 20C, have "a knock-on effect on natural ecosystems" that have adapted to Ireland's climate.

"Fragile habitats in vulnerable upland, peatland and coastal areas will come under increasing stress," he adds, noting also a 5% increase in rainfall over the last three decades, more so in the West and North West.

"Climate projections for rainfall have greater uncertainty than for temperature," he explains. "They indicate that overall rainfall amounts in Ireland might decrease slightly, summers are likely to become drier while winters may be wetter, especially in the west and north."

There are also indications of an increase in the number of very wet days – days with rainfall over 20mm – which means that such projections, when applies to river flows, show "an increased risk of winter flooding, an increased risk of short duration ‘flash’ floods and to possible water shortages in summer months due to higher temperatures and lower rainfall.

"The rise in sea levels will make low lying coastal areas more prone to flooding, especially from storm surges," he adds.

Met Éireann has more on the story HERE.

Published in Weather

#MarineScience - Climate change is rapidly warming lakes around the world, threatening freshwater supplies and ecosystems, according to a new study spanning six continents.

More than 60 scientists took part in the research, published in the journal Geophysical Research Letters and announced at the fall meeting of the American Geophysical Union on Wednesday 16 December.

The study – based on global analyses including unique long-term data from the Marine Institute's catchment research facility at Newport, Co Mayo – found that lakes are warming an average of 0.34C, or 0.61F, each decade.

That's greater than the warming rate of either the oceans or the atmosphere, and it can have profound effects, the scientists say.

At the current rate, algal blooms – which can ultimately rob water of oxygen – are projected to increase 20 percent in lakes over the next century. Algal blooms that are toxic to fish and animals would increase by five percent.

These rates imply that emissions of methane, a greenhouse gas 25 times more powerful than carbon dioxide, will increase four percent over the next decade.

"Lakes are important because society depends on surface water for the vast majority of human uses," said co-author Stephanie Hampton, director of Washington State University's Center for Environmental Research, Education and Outreach.

"Not just for drinking water, but manufacturing, for energy production, and for irrigation of our crops. Protein from freshwater fish is especially important in the developing world."

Temperature is one of the most fundamental and critical physical properties of water. It controls a host of other properties that include intricate living processes that have evolved within strict boundaries.

When the temperature swings quickly and widely from the norm, life forms in a lake can change dramatically and even disappear.

"These results suggest that large changes in our lakes are not only unavoidable, but are probably already happening," said lead author Catherine O'Reilly, associate professor of geology at Illinois State University.

Earlier research by O'Reilly has seen declining productivity in lakes with rising temperatures.

Funded in part by NASA and the National Science Foundation, the study is the largest of its kind and the first to use a combination of long-term hand measurements and temperature measurements made from satellites, offsetting the shortcomings of each method.

Study co-author Simon Hook, science division manager at the NASA Jet Propulsion Laboratory, said satellite measurements provide a broad view of lake temperatures over the entire globe. But they only measure surface temperature, while hand measurements can detect changes in temperature throughout a lake. Also, satellite measurements go back only 30 years while some lake measurements can go back more than a century.

Lough Feeagh in Co Mayo was one of 235 lakes in the study that have been monitored for at least 25 years. While that's a fraction of the world's lakes, they contain more than half the world's freshwater supply.

The Marine Institute measures the surface water temperature of Lough Feeagh as part of the long term ecological monitoring of the Burrishoole catchment. The Burrishoole research station is an internationally important index site for diadromous fish monitoring, and water temperature is a crucial variable controlling growth, migration and survival of salmon, trout and eel in the catchment.

"The inclusion of data from Lough Feeagh in this study highlights the value of collecting local environmental long term data to inform global analyses," said Dr Elvira de Eyto, a biologist at the Marine Institute facility in Burrishoole and one of the studies co-authors.

Marine Institute chief executive Dr Peter Heffernan added: "The sharing of such data with global scientific networks makes an important contribution to worldwide climate change analyses, and our understanding of how the warming climate will affect our valuable aquatic resources."

The surface water of Lough Feeagh has warmed at a rate of 0.35C per decade between 1985-2009, although the rate of warming was lower than some other northern hemisphere lakes.

"We want to be careful that we don't dismiss some of these lower rates of change," said Hampton. "In warmer lakes, those temperature changes can be really important. They can be just as important as a higher rate of change in a cooler lake."

The researchers said various climate factors are associated with the warming trend. In northern climates lakes are losing their ice cover earlier, and many areas of the world have less cloud cover, exposing their waters more to the sun's warming rays.

Many lake temperatures are rising faster than the average air temperatures. Some of the greatest warming is seen at northern latitudes, where rates can average 0.72C, or 1.3F, per decade.

Warm-water, tropical lakes may be seeing less dramatic temperature increases, but increased warming of these lakes can still have large negative impacts on fish. That can be particularly important in the African Great Lakes, home to one-fourth of the planet's freshwater supply and an important source of fish for food.

In general, the researchers write: "The pervasive and rapid warming observed here signals the urgent need to incorporate climate impacts into vulnerability assessments and adaptation efforts for lakes."

Published in Marine Science

Bray, Co Wicklow was the location for a unique Climate Change event on Friday (20th November) hosted by Seán Kelly MEP on the importance of achieving a global deal to reduce carbon emissions in Paris next month.

"I am honoured to have been chosen to be part of the delegation that will represent the European Parliament at the global UN Climate Change Conference in Paris in December and will be the only Irish MEP to do so. We received our mandate with a huge majority from the Parliament last month and we are ready to work in Paris to get our key points across," Mr Kelly told attendees.

"Climate Change is truly one of the key challenges of this century. Failure to address it effectively will result in major adverse impacts that will affect all countries.

"Ireland, for example, is particularly vulnerable to loss of coastal assets due to rising sea levels, along with increased precipitation and the resulting flood risks - all of these would prove hugely costly, both socially and economically.

"The bottom line is, we need an ambitious and binding global agreement and we will push for that in Paris. If EU ambition is matched globally, we keep jobs and economic growth here, while meeting the 2oC objective," the MEP added.

Climate change is a cross sector challenge according to Mr Kelly which requires a concerted global effort. "We need to take action to limit these temperature increases, but we have a challenge to do so while meeting the parallel challenges of ensuring food security and maintaining EU competitiveness."

"The bottom line is, we need an ambitious and binding global agreement and we will push for that in Paris. If EU ambition is matched globally, we keep jobs and economic growth here, while meeting the 2oC objective," he said.

Event speakers included Jean-Pierre Thebault, French Ambassador to Ireland, Eamon Ryan, Leader of the Green Party, Mauro Poinelli, Head of Unit Environment, Forestry and Climate Change, European Commission, who examined the agricultural side of the debate and Neil Walker, IBEC’s Head of Infrastructure, Energy and Environment who presented the Irish business perspective.

Published in Coastal Notes
Tagged under

#MarineWildlife - Climate change is driving fish species away from the tropics for more hospitable, warming waters elsewhere, according to scientists from the University of British Columbia.

RTÉ News has more on the story, which outlines that even in the best case scenario, the waters of the tropics are set to warm by one degree Celsius, promoting fish to migrate some 15 kilometres every decade towards the Arctic and Antarctic.

The Canadian university researchers used climate modelling based on findings from the past few decades to predict the situation for more than 800 fish species and marine invertebrates – and the results could be catastrophic for all coastal communities as the ecosystem changes.

Published in Marine Wildlife

#MarineWildlife - "What if whales were nature's ultimate geoengineers?" That's the question Philip Hoare poses on the Guardian's Comment Is Free section upon the news that US scientists have identified cetacean waste as a potentially pivotal link in the climate change chain.

Marine scientists from the University of Vermont compiled decades' worth of research in their new report that claims whale faeces – and deceased whales on the ocean floor – might comprise "massive carbon sinks" absorbing the CO2 human industry puts into the environment while also providing nutrients for other marine wildlife.

Indeed, it's now thought that areas where cetacean populations have shown signs of recovery after decades of hunting are also seeing "higher rates of productivity" among commercial fishing species.

The new report also supports the notion that climate change "may have been accelerated by the terrible whale culls of the 20th century" that removed a necessary balancing effect to counter the huge levels of man-made carbon emissions.

As Hoare writes: "A burgeoning global population of cetaceans might not just be good for the whalewatching industry, they may play a significant role in the planet's rearguard action against climate change."

The Guardian has much more on the story HERE.

Published in Marine Wildlife

#Jellyfish - Jellyfish are coming to Ireland's shores in bigger numbers than ever before, as the Belfast Telegraph reports.

The "worrying" finding comes with the latest figures of the annual Coastwatch survey of the island of Ireland that concluded in mid October.

Stats collected from volunteers around the coast show that jellyfish have been sighted in more areas and in greater numbers than any other time in the 25-year history of the survey - most likely the result of climate change.

Among them was an "absolutely enormous" specimen more 5 feet in diameter, found on the West coast.

"What this says to us is that our waters are warming," said Coastwatch International co-ordinator Karin Dubsky, who highlighted an explosion in the numbers of small brown jellyfish "which do a lot of damage to wildlife".

The Belfast Telegraph has more on the story HERE.

Published in Marine Wildlife
Tagged under

#POWER FROM THE SEA - Marine-based renewable energy projects could be introduced without a damaging impact on marine wildlife, according to a new briefing paper from Friends of the Earth.

Business Green reports on the paper from the environmental campaign group, written by marine ecologist Martin Attrill of Plymouth University's Marine Institute, which draws together research on the biodiversity impact of offshore wave energy, tidal energy and wind power schemes.

Attrill found that the deployment of sea energy arrays could ultimately benefit many marine species by reducing the effects of fishing activity, and even acting as reefs to attract new sea life.

He cites the example of a grey seal colony in Strangford Lough that has steered clear of a nearby tidal turbine over the three years of its operation in the lough.

However, Business Green says the report makes clear that the deployment of such projects "must be done sensitively", noting that any negative impact on biodiversity "would be significantly lower than the damage done to marine wildlife by rising sea levels caused by climate change".

Business Green has more on the story HERE.

Published in Power From the Sea
Brendan Smith TD, Minister for Agriculture, Fisheries and Food visited (Saturday 2nd Oct) the Marine Institute laboratories in Co. Mayo to see at first hand the important work being carried out by the Institute in collaboration with UCD and Trinity College on the impacts of climate change. This work has been developed as part of the NDP funded RESCALE project (Review and Simulate Climate and Catchment Responses at Burrishoole) and involves the development of computer models to assist land use and fisheries managers to deal with impacts of climate change on sensitive peatland river catchments. In an Irish context this is the first time that Global Climate Models have been downscaled to a catchment scale and the work has clearly shown that in addition to milder winters and warmer summers we can also expect more frequent flood events in the west of Ireland by the 2080's. Inland Waterways

Launching the publication of the final report on RESCALE project, Minister Smith said that the project was a major milestone in our understanding of the effects of climate change on sensitive upland catchments in the west of Ireland. "While global climate change is a worldwide phenomenon, the research findings in this report provide information at the local level that will be invaluable to fisheries and land use managers," said the Minister. "Practical research work such as RESCALE is essential if we are to plan for the future management of our valuable agriculture, fisheries and forestry resources in the west of Ireland."

The project is studying data from an unbroken record of information on water temperature, air temperature, river discharge, rainfall and a host of other factors which exists for the catchment dating back to the 1950s for the Burrishoole river. This information collected at the Furnace facility and the neighbouring Met Eireann synoptic station, is invaluable as a resource, not only for measuring physical change over the past sixty years, but also as a proven yardstick to "ground-truth" any computer-generated models describing the likely effects of global warming. Minister Smith said "I am very impressed with the work being done here in Newport and the high level of collaboration between the Institute and the Universities on marine research and its practical application to real situations to help inform decision making into the future."

Published in Inland Waterways
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Ireland's Offshore Renewable Energy

Because of Ireland's location at the Atlantic edge of the EU, it has more offshore energy potential than most other countries in Europe. The conditions are suitable for the development of the full range of current offshore renewable energy technologies.

Offshore Renewable Energy FAQs

Offshore renewable energy draws on the natural energy provided by wind, wave and tide to convert it into electricity for industry and domestic consumption.

Offshore wind is the most advanced technology, using fixed wind turbines in coastal areas, while floating wind is a developing technology more suited to deeper water. In 2018, offshore wind provided a tiny fraction of global electricity supply, but it is set to expand strongly in the coming decades into a USD 1 trillion business, according to the International Energy Agency (IEA). It says that turbines are growing in size and in power capacity, which in turn is "delivering major performance and cost improvements for offshore wind farms".

The global offshore wind market grew nearly 30% per year between 2010 and 2018, according to the IEA, due to rapid technology improvements, It calculated that about 150 new offshore wind projects are in active development around the world. Europe in particular has fostered the technology's development, led by Britain, Germany and Denmark, but China added more capacity than any other country in 2018.

A report for the Irish Wind Energy Assocation (IWEA) by the Carbon Trust – a British government-backed limited company established to accelerate Britain's move to a low carbon economy - says there are currently 14 fixed-bottom wind energy projects, four floating wind projects and one project that has yet to choose a technology at some stage of development in Irish waters. Some of these projects are aiming to build before 2030 to contribute to the 5GW target set by the Irish government, and others are expected to build after 2030. These projects have to secure planning permission, obtain a grid connection and also be successful in a competitive auction in the Renewable Electricity Support Scheme (RESS).

The electricity generated by each turbine is collected by an offshore electricity substation located within the wind farm. Seabed cables connect the offshore substation to an onshore substation on the coast. These cables transport the electricity to land from where it will be used to power homes, farms and businesses around Ireland. The offshore developer works with EirGrid, which operates the national grid, to identify how best to do this and where exactly on the grid the project should connect.

The new Marine Planning and Development Management Bill will create a new streamlined system for planning permission for activity or infrastructure in Irish waters or on the seabed, including offshore wind farms. It is due to be published before the end of 2020 and enacted in 2021.

There are a number of companies aiming to develop offshore wind energy off the Irish coast and some of the larger ones would be ESB, SSE Renewables, Energia, Statkraft and RWE.

There are a number of companies aiming to develop offshore wind energy off the Irish coast and some of the larger ones would be ESB, SSE Renewables, Energia, Statkraft and RWE. Is there scope for community involvement in offshore wind? The IWEA says that from the early stages of a project, the wind farm developer "should be engaging with the local community to inform them about the project, answer their questions and listen to their concerns". It says this provides the community with "the opportunity to work with the developer to help shape the final layout and design of the project". Listening to fishing industry concerns, and how fishermen may be affected by survey works, construction and eventual operation of a project is "of particular concern to developers", the IWEA says. It says there will also be a community benefit fund put in place for each project. It says the final details of this will be addressed in the design of the RESS (see below) for offshore wind but it has the potential to be "tens of millions of euro over the 15 years of the RESS contract". The Government is also considering the possibility that communities will be enabled to invest in offshore wind farms though there is "no clarity yet on how this would work", the IWEA says.

Based on current plans, it would amount to around 12 GW of offshore wind energy. However, the IWEA points out that is unlikely that all of the projects planned will be completed. The industry says there is even more significant potential for floating offshore wind off Ireland's west coast and the Programme for Government contains a commitment to develop a long-term plan for at least 30 GW of floating offshore wind in our deeper waters.

There are many different models of turbines. The larger a turbine, the more efficient it is in producing electricity at a good price. In choosing a turbine model the developer will be conscious of this ,but also has to be aware the impact of the turbine on the environment, marine life, biodiversity and visual impact. As a broad rule an offshore wind turbine will have a tip-height of between 165m and 215m tall. However, turbine technology is evolving at a rapid rate with larger more efficient turbines anticipated on the market in the coming years.

 

The Renewable Electricity Support Scheme is designed to support the development of renewable energy projects in Ireland. Under the scheme wind farms and solar farms compete against each other in an auction with the projects which offer power at the lowest price awarded contracts. These contracts provide them with a guaranteed price for their power for 15 years. If they obtain a better price for their electricity on the wholesale market they must return the difference to the consumer.

Yes. The first auction for offshore renewable energy projects is expected to take place in late 2021.

Cost is one difference, and technology is another. Floating wind farm technology is relatively new, but allows use of deeper water. Ireland's 50-metre contour line is the limit for traditional bottom-fixed wind farms, and it is also very close to population centres, which makes visibility of large turbines an issue - hence the attraction of floating structures Do offshore wind farms pose a navigational hazard to shipping? Inshore fishermen do have valid concerns. One of the first steps in identifying a site as a potential location for an offshore wind farm is to identify and assess the level of existing marine activity in the area and this particularly includes shipping. The National Marine Planning Framework aims to create, for the first time, a plan to balance the various kinds of offshore activity with the protection of the Irish marine environment. This is expected to be published before the end of 2020, and will set out clearly where is suitable for offshore renewable energy development and where it is not - due, for example, to shipping movements and safe navigation.

YEnvironmental organisations are concerned about the impact of turbines on bird populations, particularly migrating birds. A Danish scientific study published in 2019 found evidence that larger birds were tending to avoid turbine blades, but said it didn't have sufficient evidence for smaller birds – and cautioned that the cumulative effect of farms could still have an impact on bird movements. A full environmental impact assessment has to be carried out before a developer can apply for planning permission to develop an offshore wind farm. This would include desk-based studies as well as extensive surveys of the population and movements of birds and marine mammals, as well as fish and seabed habitats. If a potential environmental impact is identified the developer must, as part of the planning application, show how the project will be designed in such a way as to avoid the impact or to mitigate against it.

A typical 500 MW offshore wind farm would require an operations and maintenance base which would be on the nearby coast. Such a project would generally create between 80-100 fulltime jobs, according to the IWEA. There would also be a substantial increase to in-direct employment and associated socio-economic benefit to the surrounding area where the operation and maintenance hub is located.

The recent Carbon Trust report for the IWEA, entitled Harnessing our potential, identified significant skills shortages for offshore wind in Ireland across the areas of engineering financial services and logistics. The IWEA says that as Ireland is a relatively new entrant to the offshore wind market, there are "opportunities to develop and implement strategies to address the skills shortages for delivering offshore wind and for Ireland to be a net exporter of human capital and skills to the highly competitive global offshore wind supply chain". Offshore wind requires a diverse workforce with jobs in both transferable (for example from the oil and gas sector) and specialist disciplines across apprenticeships and higher education. IWEA have a training network called the Green Tech Skillnet that facilitates training and networking opportunities in the renewable energy sector.

It is expected that developing the 3.5 GW of offshore wind energy identified in the Government's Climate Action Plan would create around 2,500 jobs in construction and development and around 700 permanent operations and maintenance jobs. The Programme for Government published in 2020 has an enhanced target of 5 GW of offshore wind which would create even more employment. The industry says that in the initial stages, the development of offshore wind energy would create employment in conducting environmental surveys, community engagement and development applications for planning. As a site moves to construction, people with backgrounds in various types of engineering, marine construction and marine transport would be recruited. Once the site is up and running , a project requires a team of turbine technicians, engineers and administrators to ensure the wind farm is fully and properly maintained, as well as crew for the crew transfer vessels transporting workers from shore to the turbines.

The IEA says that today's offshore wind market "doesn't even come close to tapping the full potential – with high-quality resources available in most major markets". It estimates that offshore wind has the potential to generate more than 420 000 Terawatt hours per year (TWh/yr) worldwide – as in more than 18 times the current global electricity demand. One Terawatt is 114 megawatts, and to put it in context, Scotland it has a population a little over 5 million and requires 25 TWh/yr of electrical energy.

Not as advanced as wind, with anchoring a big challenge – given that the most effective wave energy has to be in the most energetic locations, such as the Irish west coast. Britain, Ireland and Portugal are regarded as most advanced in developing wave energy technology. The prize is significant, the industry says, as there are forecasts that varying between 4000TWh/yr to 29500TWh/yr. Europe consumes around 3000TWh/year.

The industry has two main umbrella organisations – the Irish Wind Energy Association, which represents both onshore and offshore wind, and the Marine Renewables Industry Association, which focuses on all types of renewable in the marine environment.

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