Emily Roskam, a PhD Walsh Scholar at Teagasc, lets a sheep out of a methane measuring chamber, after measuring it's methane emissions at the end of a Seasolutions trial where sheep were fed seaweed extract to reduce their methane emissions at the Teagasc Agriculture and Food Development Authority Mellows Campus in Athenry, Ireland, September 6, 2021. "We have 140 sheep here and each morning they are getting half a kilo of concentrates, they get 400 grams of nuts made of maize meal and a bit of molasses which is kind of sugary to stick them together, then they each get 100 grams of their additives, we have a 'control diet' or we have seaweed extract," said Roskam. REUTERS/Clodagh Kilcoyne SEARCH "KILCOYNE SEAWEED" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES TPX IMAGES OF THE DAY 

Seaweed harvester Marc O'Goill, who works for Blath na Mara seaweed company owned by Jenny and David O'Halloran, hauls a net of Serrated Rack (Fucus Serratus) seaweed across a rocky shore on Inis Mor of the Aran Islands, Ireland, April 28, 2021. Scientists are combing Ireland's west coast for seaweed to feed to cattle and sheep after research showed it could stop them breathing out so much climate-warming methane. The project, coordinated by state agriculture body Teagasc, is tapping into the country's growing seaweed harvesting industry, which is seeking new markets as it revives centuries-old traditions. REUTERS/Clodagh Kilcoyne SEARCH "KILCOYNE SEAWEED" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES TPX IMAGES OF THE DAY 

A traditional currach boat sits on the shore beside bundles of seaweed in the Connemara region of Kilkieran, Ireland, September 10, 2021. Scientists are combing Ireland's west coast for seaweed to feed to cattle and sheep after research showed it could stop them breathing out so much climate-warming methane. The project, coordinated by state agriculture body Teagasc, is tapping into the country's growing seaweed harvesting industry, which is seeking new markets as it revives centuries-old traditions. REUTERS/Clodagh Kilcoyne SEARCH "KILCOYNE SEAWEED" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES 

Dairy cattle that are participating in a trial of being fed seaweed to offset methane emissions gather around the solar powered methane measuring machine at the AFBI (Agri-Food and Biosciences Institute) research farm in Hillsborough, Northern Ireland, October 7, 2021. Scientists are combing Ireland's west coast for seaweed to feed to cattle and sheep after research showed it could stop them breathing out so much climate-warming methane. Researchers are working on how to integrate the feed additives into Ireland's predominantly grass-based cattle farming system. On a farm outside Hillsborough, researchers use treats to coax cows to poke their heads into a solar-powered machine that measures the level of methane on their breath. REUTERS/Clodagh Kilcoyne SEARCH "KILCOYNE SEAWEED" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES 

Dr Steven Morrison, Programme Leader in Sustainable Livestock Production at AFBI (Agri-Food and Biosciences Institute) in Northern Ireland, and Professor of Animal Science and Microbiology Sharon Huws at Queens University Belfast (QUB), pose for a photograph in front of dairy cattle at the AFBI (Agri-Food and Biosciences Institute) research farm in Hillsborough, Northern Ireland, October 7, 2021. The dairy cattle are participating in a trial of being fed seaweed to offset methane emissions. "From having an understanding of what the animal's are producing, we then can look at mitigation options - how can we alter diets, how can we look at genetics of the animals, how can we really drive those greenhouse gas emissions down," said Morrison. REUTERS/Clodagh Kilcoyne SEARCH "KILCOYNE SEAWEED" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES 

Sheep are herded at the Teagasc Agriculture and Food Development Authority in it's Mellows Campus in Athenry, Ireland, August 31, 2021. Scientists are combing Ireland's west coast for seaweed to feed to cattle and sheep after research showed it could stop them breathing out so much climate-warming methane. The project, coordinated by a state agriculture body, is tapping into the country's growing seaweed harvesting industry, which is seeking new markets as it revives centuries-old traditions. REUTERS/Clodagh Kilcoyne SEARCH "KILCOYNE SEAWEED" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES TPX IMAGES OF THE DAY 

A sheep looks out from a portable accumulation chamber where Emily Roskam, a PhD Walsh Scholar at Teagasc, measures the methane emissions of the sheep, after it spends an hour in the methane measuring chamber at the end of a Seasolutions trial at the Teagasc Agriculture and Food Development Authority in it's Mellows Campus in Athenry, Ireland, September 6, 2021. During the Seasolutions trial, sheep were fed seaweed extract to reduce their methane emissions. "We have 140 sheep here and each morning they are getting half a kilo of concentrates, they get 400 grams of nuts made of maize meal and a bit of molasses which is kind of sugary to stick them together, then they each get 100grams of their additives, we have a 'control diet' or we have seaweed extract," said Roskam. REUTERS/Clodagh Kilcoyne SEARCH "KILCOYNE SEAWEED" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES 

Emily Roskam, a PhD Walsh Scholar at Teagasc, feeds sheep during a Seasolutions trial where sheep are fed seaweed extract to reduce their methane emissions at the Teagasc Agriculture and Food Development Authority in it's Mellows Campus in Athenry, Ireland, August 31, 2021. "Research has shown that different seaweeds reduce methane emissions, there's green, brown and red seaweed, these (in the trial) are a brown seaweed extract and we are seeing if they reduce methane emissions in the sheep," said Roskam. REUTERS/Clodagh Kilcoyne SEARCH "KILCOYNE SEAWEED" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES 

Rain falls over the Donegal coastline near County Donegal, Ireland, March 11, 2021. Scientists are combing Ireland's west coast for seaweed to feed to cattle and sheep after research showed it could stop them breathing out so much climate-warming methane. The project, coordinated by state agriculture body Teagasc, is tapping into the country's growing seaweed harvesting industry, which is seeking new markets as it revives centuries-old traditions. REUTERS/Clodagh Kilcoyne SEARCH "KILCOYNE SEAWEED" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES 

Evan Talty, the Managing Director of Wild Irish Seaweeds, turns the Carrigeen Moss (Chondrus Crispus) seaweed in a field on his seaweed farm where it has been laid out to dry in the sun, in the County Clare village of Quilty, Ireland, April 13, 2021. "Sustainably harvesting means that we get crop regeneration. Seaweed has been harvested in this area for hundreds of years, once sustainably harvested in the same way as our ancestors have done, it will continue to regenerate," said Talty. REUTERS/Clodagh Kilcoyne SEARCH "KILCOYNE SEAWEED" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES 

David O'Halloran picks up a pot of seaweed pesto which he has made with his wife Jenny O'Halloran, as part of a line of products that their seaweed company Blath na Mara sells using seaweed that they have harvested, as he makes lunch for his family in their home on Inis Mor of the Aran Islands, Ireland, April 28, 2021. "Because of the nature of seaweed and the market it's in, all of the customers and clients really see the environment as an important part of their lives as well, so it's important to the customers and it's important to us that it's environmentally sustainable," said O'Halloran. REUTERS/Clodagh Kilcoyne SEARCH "KILCOYNE SEAWEED" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES 

Stand-up paddle boarders enjoy the sea in Galway bay with a view of the Burren karst landscape, seen from Galway, Ireland, April 13, 2021. Scientists are combing Ireland's west coast for seaweed to feed to cattle and sheep after research showed it could stop them breathing out so much climate-warming methane. The project, coordinated by state agriculture body Teagasc, is tapping into the country's growing seaweed harvesting industry, which is seeking new markets as it revives centuries-old traditions. REUTERS/Clodagh Kilcoyne SEARCH "KILCOYNE SEAWEED" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES 

Coleman Dundass, a seaweed harvester, ties up three 'climin', each of which are a two-tonne seaweed bundle that he gathered, as he stands in his currach boat in Kilkieran, Ireland, September 10, 2021. Scientists are combing Ireland's west coast for seaweed to feed to cattle and sheep after research showed it could stop them breathing out so much climate-warming methane. The project, coordinated by state agriculture body Teagasc, is tapping into the country's growing seaweed harvesting industry, which is seeking new markets as it revives centuries-old traditions. REUTERS/Clodagh Kilcoyne SEARCH "KILCOYNE SEAWEED" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES 

David O'Halloran, who runs the seaweed company Blath na Mara with his wife Jenny O'Halloran, works with seaweed harvester Marc O'Goill to take down fully dried Kombu (laminaria digitata) which hangs in the drying room on the O'Halloran's seaweed farm before packing it into a giant sack, on Inis Mor of the Aran Islands, Ireland, April 28, 2021. "Because of the nature of seaweed and the market it's in, all of the customers and clients really see the environment as an important part of their lives as well, so it's important to the customers and it's important to us that it's environmentally sustainable," said O'Halloran. REUTERS/Clodagh Kilcoyne SEARCH "KILCOYNE SEAWEED" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES 

Sea Spaghetti seaweed (Himanthalia elongata) rests on top of Sea Lettuce (Ulva) while the tide is out, before it is harvested by the O'Halloran's of Blath na Mara seaweed company, on a rocky shore on Inis Mor of the Aran Islands, Ireland, April 28, 2021. Scientists are combing Ireland's west coast for seaweed to feed to cattle and sheep after research showed it could stop them breathing out so much climate-warming methane. The project, coordinated by state agriculture body Teagasc, is tapping into the country's growing seaweed harvesting industry, which is seeking new markets as it revives centuries-old traditions. REUTERS/Clodagh Kilcoyne SEARCH "KILCOYNE SEAWEED" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES 

Sinead O'Brien, the founder of Mungo Murphy's Seaweed Company, holds up a piece of kelp (laminaria) taken from a tank where abalone feed on it at her integrated multitrophic aquaculture farm where she grows the high-value abalone over a five year period for export at her boutique business in Baile na hAbhann, Ireland, April 15, 2021. "It's really important to have that sustainable cyclical relationship with the seaweed that's growing out there and using that natural feed for animals," said O'Brien. REUTERS/Clodagh Kilcoyne SEARCH "KILCOYNE SEAWEED" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES 

Emily Roskam and Sarah Woodmartin, both PhD Walsh Scholars at Teagasc, shepherd sheep out of a holding pen towards the methane measuring chambers towards the end of a Seasolutions trial where sheep were fed an extract of seaweed to reduce their methane emissions at the Teagasc Agriculture and Food Development Authority sheep research centre in Athenry, Ireland, September 6, 2021. "We have 140 sheep here and each morning they are getting half a kilo of concentrates, they get 400 grams of nuts made of maize meal and a bit of molasses which is kind of sugary to stick them together, then they each get 100grams of their additives, we have a 'control diet' or we have seaweed extract," said Roskam. REUTERS/Clodagh Kilcoyne SEARCH "KILCOYNE SEAWEED" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES 

Emily Roskam, a PhD Walsh Scholar at Teagasc, takes measurements on top of methane chambers towards the end of a Seasolutions trial where sheep are fed seaweed to reduce their methane emissions at the Teagasc Agriculture and Food Development Authority sheep research centre in Athenry, Ireland, September 6, 2021. "We have 140 sheep here and each morning they are getting half a kilo of concentrates, they get 400 grams of nuts made of maize meal and a bit of molasses which is kind of sugary to stick them together, then they each get 100grams of their additives, we have a 'control diet' or we have seaweed extract," said Roskam. REUTERS/Clodagh Kilcoyne SEARCH "KILCOYNE SEAWEED" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES 

Sheep stand together in the Teagasc Agriculture and Food Development Authority in it's Mellows Campus in Athenry, Ireland, August 31, 2021. Scientists are combing Ireland's west coast for seaweed to feed to cattle and sheep after research showed it could stop them breathing out so much climate-warming methane. The project, coordinated by a state agriculture body, is tapping into the country's growing seaweed harvesting industry, which is seeking new markets as it revives centuries-old traditions. REUTERS/Clodagh Kilcoyne SEARCH "KILCOYNE SEAWEED" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES 

Cody Talty, 6, the nephew of Evan Talty, Managing Director of Wild Irish Seaweed, attempts to drive his electric truck through the doorway of the packing room at the Wild Irish Seaweeds farm in Quilty, Ireland, April 13, 2021. REUTERS/Clodagh Kilcoyne SEARCH "KILCOYNE SEAWEED" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES 

Emily Roskam, a PhD Walsh Scholar at Teagasc, prepares castor oil to add to sheep feed during a Seasolutions trial where sheep are fed seaweed extract to reduce their methane emissions at the Teagasc Agriculture and Food Development Authority in it's Mellows Campus in Athenry, Ireland, August 31, 2021. "We have 140 sheep here and each morning they are getting half a kilo of concentrates, they get 400 grams of nuts made of maize meal and a bit of molasses which is kind of sugary to stick them together, then they each get 100 grams of their additives, we have a 'control diet' or we have seaweed extract," said Roskam. REUTERS/Clodagh Kilcoyne SEARCH "KILCOYNE SEAWEED" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES 

David O'Halloran, who runs the seaweed company Blath na Mara with his wife Jenny O'Halloran, harvests Sea Spaghetti seaweed (himonthalia elongata) on a rocky shore on Inis Mor of the Aran Islands, Ireland, April 28, 2021. Scientists are combing Ireland's west coast for seaweed to feed to cattle and sheep after research showed it could stop them breathing out so much climate-warming methane. The project, coordinated by state agriculture body Teagasc, is tapping into the country's growing seaweed harvesting industry, which is seeking new markets as it revives centuries-old traditions. REUTERS/Clodagh Kilcoyne SEARCH "KILCOYNE SEAWEED" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES 

A boat floats near the pier on the Connemara island of Lettermullan, Ireland, April 15, 2021. REUTERS/Clodagh Kilcoyne SEARCH "KILCOYNE SEAWEED" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES 

Abalone are photographed underwater in their grow-out tanks where they favour dark conditions, at founder and Managing Director Cindy O'Brien's Connemara Abalone farm which she runs with her daughter Sinead O'Brien, in Baile na hAbhann, Ireland, April 15, 2021. These abalone are grown on an aquaculture farm in tanks that are an integrated multitrophic aquaculture system that uses only natural resources. REUTERS/Clodagh Kilcoyne SEARCH "KILCOYNE SEAWEED" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES 

A cow stands near a rocky field at Coral Strand, in Carraroe, Ireland, April 15, 2021. Scientists are combing Ireland's west coast for seaweed to feed to cattle and sheep after research showed it could stop them breathing out so much climate-warming methane. The project, coordinated by a state agriculture body, is tapping into the country's growing seaweed harvesting industry, which is seeking new markets as it revives centuries-old traditions. REUTERS/Clodagh Kilcoyne SEARCH "KILCOYNE SEAWEED" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES 

An oyster farm is pictured on the coastline in County Donegal, Ireland, March 11, 2021. REUTERS/Clodagh Kilcoyne SEARCH "KILCOYNE SEAWEED" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES 

A coastline is pictured in County Donegal, Ireland, March 11, 2021. Scientists are combing Ireland's west coast for seaweed to feed to cattle and sheep after research showed it could stop them breathing out so much climate-warming methane. The project, coordinated by state agriculture body Teagasc, is tapping into the country's growing seaweed harvesting industry, which is seeking new markets as it revives centuries-old traditions. REUTERS/Clodagh Kilcoyne SEARCH "KILCOYNE SEAWEED" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES 

A daisy peeps through a bed of Carrageen, commonly called Irish Moss (Chondrus Crispus), seaweed laid out in a field after being harvested as Evan Talty, owner of Wild Irish Seaweeds, sprays it with water at his seaweed farm in Quilty, Ireland, April 13, 2021. Scientists are combing Ireland's west coast for seaweed to feed to cattle and sheep after research showed it could stop them breathing out so much climate-warming methane. The project, coordinated by a state agriculture body, is tapping into the country's growing seaweed harvesting industry, which is seeking new markets as it revives centuries-old traditions. REUTERS/Clodagh Kilcoyne SEARCH "KILCOYNE SEAWEED" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES