je.st

Home › trees

Tag: trees

Older trees best at fighting climate change

2014-01-16 20:07:00| Climate Ark Climate Change & Global Warming Newsfeed

Grist: As humans age, we tend to pass more gas. As trees age, they tend to suck more of it up. A new paper published Wednesday in the journal Nature has blown away old misconceptions about the roles that the most mature trees in forests play in combating climate change. It has long been believed that younger trees are better than their older neighbors at absorbing carbon dioxide. But the new research suggests that the opposite is true. It turns out that big trees just keep on growing, at fast rates,...

Tags: change older trees fighting

Old Trees Grow Faster With Every Year

2014-01-16 09:28:00| Climate Ark Climate Change & Global Warming Newsfeed

National Public Radio: Like other animals and many living things, we humans grow when we're young and then stop growing once we mature. But trees, it turns out, are an exception to this general rule. In fact, scientists have discovered that trees grow faster the older they get. Once trees reach a certain height, they do stop getting taller. So many foresters figured that tree growth - and girth - also slowed with age. "What we found was the exact opposite," says Nate Stephenson, a forest ecologist with the U.S. Geological...

Tags: year grow faster trees

Old trees versus new trees: Which grows fastest?

2014-01-15 20:26:00| Climate Ark Climate Change & Global Warming Newsfeed

LiveScience: Like a fairy-tale beanstalk, a tree can grow and grow until it scrapes the sky. Instead of slowing down as the centuries add up, old trees speed up their growth, according to a study published on Jan. 15 in the journal Nature. "Trees keep growing like crazy throughout their life span," said Nate Stephenson, lead study author and a forest ecologist with the U.S. Geological Survey (USGS) in Three Rivers, Calif. The results of the survey of 403 tree species around the world suggest that trees...

Tags: trees versus fastest grows

Trees destroyed as New Zealand climate change policy fails: Academic

2014-01-10 15:00:00| Climate Ark Climate Change & Global Warming Newsfeed

Xinhua: Unwanted tree seedlings are being killed with herbicide as New Zealand's attempts to mitigate the problem of greenhouse gas emissions and climate change falter, a leading academic said Friday. University of Canterbury forestry expert Professor Euan Mason said a large number of seedlings were grown by the university's School of Forestry in response to the country's emissions trading scheme (ETS), but many were destroyed after being left unsold during the 2013 planting season. "These 2-year-old...

Tags: policy change academic zealand