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Displaying items by tag: Ireland's changed climate

The Marine Institute (MI), Environmental Protection Agency (EPA) and Met Éireann (MÉ) have published a report on "The Status of Ireland's Climate".

This is the second comprehensive analysis of "essential" climate data collected in Ireland. It confirms and updates findings from the 2012 report and details how global changes are being reflected in our atmosphere, oceans and our landscape.

The report was prepared by MaREI, University College Cork and funded by The Environmental Protection Agency (EPA), Met Éireann (MÉ) and the Marine Institute (MI).

• Long term observations in Ireland provide important insights on the causes and consequences of Climate Change;
• Increases in atmospheric levels of carbon dioxide, methane and nitrous oxide have been observed in Ireland, and reflect the increasing global levels of these key drivers of global warming;
• Global warming has resulted in Ireland's climate becoming warmer and wetter;
• Sea level rise, increased ocean acidity, and higher ocean temperatures are also observed in our oceans and coastal areas;
• Ireland's ocean and terrestrial ecosystems are responding to these changes, resulting in changes in ocean species and a longer growing season on land.

Welcoming the publication of the report Laura Burke, EPA Director General, said: "Climate observations provide the basis for our understanding of the realities of climate change here in Ireland, in Europe, and globally. As a Party to the UN Framework Convention on Climate Change, and the Paris Agreement, Ireland has committed to carry out the range of climate observations outlined in this report. These data enable bodies such as the IPCC to carry out their analysis of global changes. Importantly, they are needed to inform effective responses to the changes that are happening here in Ireland.

Today's report brings together the evidence of the changes that have occurred across Ireland's environment, from both long term detailed measurements on our land and in our oceans and atmosphere and from linked data from satellite observations from programmes such as Copernicus."

The scientific data monitored and collated by GCOS Ireland represents Ireland's long- standing contribution to the international scientific effort of providing the fundamental data needed to monitor our changing climate. GCOS Ireland collects scientific data on more than 40 Essential Climate Variables, identified by the UNFCCC, across atmospheric, oceanic, and terrestrial domains.

Highlighting the importance of the Status of Ireland's Climate report Eoin Moran, Director, Met Éireann said: "As citizen's in Ireland and around the world are now seeing the impacts of Climate Change, through evermore extreme weather events, fires and flooding etc; high quality observations of the climate are crucial to help inform society's response to the Climate Emergency. Scientific long-term monitoring of the climate underpins climate research and the development of climate services which support policy making and decision making in the face of the urgency of the climate crisis.

The Status of Ireland's Climate report not only includes invaluable data provided to GCOS as Ireland's contribution to the global climate monitoring effort but also informs development and improvement of national climate monitoring infrastructure to provide ever better understanding of our climate system and to optimise national climate monitoring capacity. This long-term climate monitoring allows us to best compare changes occurring in Ireland's climate to those across Europe and the rest of the world and to tailor our national response into the future".

Commenting on the findings, Mick Gillooly, Interim CEO, Marine Institute, said: "Long term climate monitoring programmes are needed to provide the evidence required to support national climate policy and action. It is through sustainable long term monitoring networks that we can measure the current state of our climate, and how much it has changed by, which in turn gives us an indication of how much more it is likely to change by into the future."

Key findings from the report


Atmosphere
• The annual average surface air temperature in Ireland has increased by over 0.9oC over the last 120 years, with a rise in temperature being observed in all seasons.
• Annual precipitation was 6 per cent higher in the period 1989 to 2018, compared to the 30-year period 1961 to 1990.
• The concentration of the main Climate driver: greenhouse gases - carbon dioxide, methane and nitrous oxide - measured in Ireland, continued to increase since 2012 with long term implications for our climate.

Oceans
• Satellite observations indicate that the sea level around Ireland has risen by approximately 2-3mm per year since the early 1990s.
• Measurements in the surface water to the west of Ireland indicate an increase in ocean acidity which is comparable to the rate of change in oceans around the world.
• The average sea surface temperature measured at Malin Head has been 0.47ºC higher over the last ten years compared to the period 1981-2010.

Land
• There is an increase in river flows across most of Ireland since the early 70s. However, there is evidence in recent years of an increase in potential drought conditions especially in the east.
• Land cover observations since 1990 show increases in the areas covered by artificial surfaces and forest whilst there is a decrease in wetland areas.

The report also identified that progress has been made in several areas of Ireland's observation infrastructure, resourcing, analyses and co-ordination, since the 2012 Climate status report. Nonetheless, further action is needed to ensure the national climate observation system is fit for purpose for the coming decades. This includes continued maintenance of existing climate monitoring programmes and infrastructure, the transition of climate observations to long-term sustainable programmes, and investigate potential to monitor essential climate variables not currently observed in Ireland.

Links to relevant materials

The Status of Ireland's Climate, 2020

Summary brochure

Climate Ireland, Ireland's Climate Status Tool, provides interactive access to the Climate Status Report Ireland (CSRI) 2020.

Contact Information

Environmental Protection Agency:
Emily Williamson/Aileen Moon, EPA Media Relations Office 053-9170770 (24 hours) or [email protected]

Met Éireann
Bonnie Diamond, Communications Meteorologist 01-8064255 or [email protected]

Marine Institute
Sheila Byrnes, Communications Manager, 087-8155271 or [email protected]

Published in Marine Science

Sharks in Irish waters

Irish waters are home to 71 species of shark, skates and rays, 58 of which have been studied in detail and listed on the Ireland Red List of Cartilaginous fish. Irish sharks range from small Sleeper sharks, Dogfish and Catsharks, to larger species like Frilled, Mackerel and Cow sharks, all the way to the second largest shark in the world, the Basking shark. 

Irish waters provide a refuge for an array of shark species. Tralee Bay, Co. Kerry provides a habitat for several rare and endangered sharks and their relatives, including the migratory tope shark, angel shark and undulate ray. This area is also the last European refuge for the extremely rare white skate. Through a European Maritime and Fisheries Fund (EMFF) project, Marine Institute scientists have been working with fishermen to assess the distribution, diversity, and monthly relative abundance of skates and rays in Tralee, Brandon and Dingle Bays.

“These areas off the southwest coast of Ireland are important internationally as they hold some of the last remaining refuges for angel shark and white skate,” said Dr Maurice Clarke of the Marine Institute. “This EMFF project has provided data confirming the critically endangered status of some species and provides up-to-date information for the development of fishery measures to eliminate by-catch.” 

Irish waters are also home to the Black Mouthed Catshark, Galeus melastomus, one of Ireland’s smallest shark species which can be found in the deep sea along the continental shelf. In 2018, Irish scientists discovered a very rare shark-nursery 200 nautical miles off the west coast by the Marine Institute’s ROV Holland 1 on a shelf sloping to 750 metres deep. 

There are two ways that sharks are born, either as live young or from egg casings. In the ‘case’ of Black Mouthed Catsharks, the nursery discovered in 2018, was notable by the abundance of egg casings or ‘mermaid’s purses’. Many sharks, rays and skate lay eggs, the cases of which often wash ashore. If you find an egg casing along the seashore, take a photo for Purse Search Ireland, a citizen science project focusing on monitoring the shark, ray and skate species around Ireland.

Another species also found by Irish scientists using the ROV Holland 1 in 2018 was a very rare type of dogfish, the Sail Fin Rough Shark, Oxynotus paradoxus. These sharks are named after their long fins which resemble the trailing sails of a boat, and live in the deep sea in waters up to 750m deep. Like all sharks, skates and rays, they have no bones. Their skeleton is composed of cartilage, much like what our noses and ears are made from! This material is much more flexible and lighter than bone which is perfect for these animals living without the weight of gravity.

Throughout history sharks have been portrayed as the monsters of the sea, a concept that science is continuously debunking. Basking sharks were named in 1765 as Cetorhinus maximus, roughly translated to the ‘big-nosed sea monster’. Basking sharks are filter feeders, often swimming with their mouths agape, they filter plankton from the water.

They are very slow moving and like to bask in the sun in shallow water and are often seen in Irish waters around Spring and early Summer. To help understand the migration of these animals to be better able to understand and conserve these species, the Irish Basking Shark Group have tagged and mapped their travels.

Remarkably, many sharks like the Angel Shark, Squatina squatina have the ability to sense electricity. They do this via small pores in their skin called the ‘Ampullae of Lorenzini’ which are able to detect the tiny electrical impulses of a fish breathing, moving or even its heartbeat from distances of over a kilometre! Angel sharks, often referred to as Monkfish have a distinctively angelic shape, with flattened, large fins appearing like the wings of an angel. They live on the seafloor in the coastal waters of Ireland and much like a cat are nocturnal, primarily active at night.

The intricate complexity of shark adaptations is particularly noticeable in the texture of their skin. Composed of miniscule, perfectly shaped overlapping scales, the skin of shark provides them with protection. Often shark scales have been compared to teeth due to their hard enamel structure. They are strong, but also due to their intricate shape, these scales reduce drag and allow water to glide past them so that the shark can swim more effortlessly and silently. This natural flawless design has been used as inspiration for new neoprene fabric designs to help swimmers glide through the water. Although all sharks have this feature, the Leafscale Gulper Shark, Centrophorus squamosus, found in Ireland are specifically named due to the ornate leaf-shape of their scales.