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Fires set stage for irreversible forest losses in Australia

Fires set stage for irreversible forest losses in Australia

Technology
Australia’s forests are burning at a rate unmatched in modern times and scientists say the landscape is being permanently altered as a warming climate brings profound changes to the island continent. Heat waves and drought have fueled bigger and more frequent fires in parts of Australia, so far this season torching some 40,000 square miles (104,000 square kilometers), an area about as big as Ohio. With blazes still raging in the country’s southeast, government officials are drawing up plans to reseed burned areas to speed up forest recovery that could otherwise take decades or even centuries. But some scientists and forestry experts doubt that reseeding and other intervention efforts can match the scope of the destruction. The fires since September have killed 28 people and bur
Canadian tundra was once covered in thick forest

Canadian tundra was once covered in thick forest

Science
Dec. 13 (UPI) -- Today, Canada's Ellesmere and Axel Heiberg islands are treeless. The tundra's grasses and shrubs rise no more than a foot or so off the oft-frozen ground. New research suggests the island weren't always quite so barren. Analysis of some 5,000 fossil samples from the Canadian Arctic -- the largest such survey -- showed Canada's northernmost islands were once covered in rich temperate forest. "It's very surprising how similar these ancient polar forests were to some of our modern forests," paleobotanist Christopher West, who recently received earned his doctorate at the University of Saskatchewan, said in a news release. "I identified fossil plants related to many modern temperate trees: birch, alder, elms -- even plants belonging to the grape family. Some of the fossils a...
Heat, wildfires could alter Alaska’s forest composition

Heat, wildfires could alter Alaska’s forest composition

Science
Aug. 26 (UPI) -- If global warming continues unabated and wildfires become bigger, stronger and burn more frequently among northern climates, scientists worry the composition of Alaska's northern forests could be permanently altered. According to a new study, published this week in the journal Nature Plants, warmer temperatures and the threat of fire is likely to enable the spread of deciduous tree species at the expense of evergreens. In simulations, the well-tested ecosystem model called ecosys predicted northern Alaska's conifer population, including black spruce, will decline by 25 percent by the end of the century. The abundance of moss and lichen will decline by 66 percent, according to the ecosys model. Broadleaf deciduous trees like aspen will eventually come to dominate. The shi...
Carabao Cup second round draw: Newcastle host Leicester City, Nottingham Forest and Derby County face off, West Ham with trip to Newport

Carabao Cup second round draw: Newcastle host Leicester City, Nottingham Forest and Derby County face off, West Ham with trip to Newport

Sports
Newcastle United will face Premier League side Leicester City in the pick of the second round ties of the 2019/20 Carabao Cup.Old rivalries are resumed as Nottingham Forest have been drawn against East Midlands rivals Derby County. Getty Images - Getty Leeds safely made it to the second round with a win at Salford City Meanwhile, Everton travel to League One side Lincoln City, who beat Huddersfield. West Ham have a tricky trip to Newport while Middlesbrough’s conquerors Crewe Alexandra host Aston Villa. Below you can see the Carabao Cup second round draw IN FULL: The ties will be played the week beginning 26 August. ROUND-UP Leeds thrash Salford City, MK Dons beat Wimbled
‘We moved to the forest to fight climate change’

‘We moved to the forest to fight climate change’

Science
Janne Utriainen, his wife and four daughters are tackling climate change in their own way: they’ve moved to a remote location in northern Lapland where they live off the land: they fish, hunt, pick berries, keep sheep and chickens and grow some vegetables. Janne believes that climate change is caused by overconsumption - so in order to save the planet, he believes we should all consume less and waste less. The family does have electricity but they don't have running water in the house: they use water from a lake for cooking and washing clothes. Could adopting a sustainable lifestyle be a solution for climate change?Produced by Erika Benke, Camera: Antti J. Leinonen, Edited by Soraya Auer Let's block ads! (Why?) BBC News - Science & Environment