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Tag: tree
Tree ring warning: Forests may not be able to save us
2016-07-22 18:00:00| Climate Ark Climate Change & Global Warming Newsfeed
Futurity: Forests take up 25 to 30 percent of human-caused emissions of carbon dioxide--a strong greenhouse gas--and therefore are considered to play a crucial role in mitigating the speed and magnitude of climate change. However, a new study that combines future climate model projections; historic tree-ring records across the entire continent of North America; and how the growth rates of trees may respond to a higher concentration of carbon dioxide in the atmosphere shows that the mitigation effect of...
Study: Drought impedes tree growth, shuts down Amazon carbon sink
2016-07-21 14:26:00| Climate Ark Climate Change & Global Warming Newsfeed
Mongabay: The Amazon rainforest is popularly known as the the planets lungs absorbing and storing 100 billion tons of carbon and preventing it from entering the atmosphere. Maintaining that vast carbon sink is seen as vital to limiting climate change impacts. Now, new research published in the Global Biogeochemical Cycles journal shows that droughts can bring this crucial ecosystem service to a grinding halt. University of Exeter scientist Dr. Ted Feldpausch and an international team of researchers...
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'Three centuries' to catalogue all Amazon tree species
2016-07-13 23:27:00| Climate Ark Climate Change & Global Warming Newsfeed
BBC: Tree species in the Amazon rainforest are so many and varied that it would take three centuries to catalogue them, a major study has estimated. In research published in the journal Scientific Reports, more than 500,000 museum specimens dating back 300 years were audited. They say nearly 12,000 tree species have been discovered so far. Based on this figure, they predicted that about 4,000 rare types remained to be discovered and described. The scientists say the species list will assist...
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Portland Parks & Recreation, community partners present Tree Hug PDX: The Worlds Greatest Tree Hug
2016-07-13 21:42:58| PortlandOnline
Tags: community
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tree
There are so many Amazonian tree species, we won't discover the last one for 300 years
2016-07-13 19:14:00| Climate Ark Climate Change & Global Warming Newsfeed
PhysOrg: There are more different kinds of trees in the Amazon rainforest than anywhere else on earth, but the exact number has long been a mystery. In 2013, scientists estimated that the number of species was around 16,000no one had ever counted them all up, though. In a new paper in Scientific Reports, the same scientists delved into museum collections from around the world to confirm just how many tree species have been recorded in the Amazon so farand how many have yet to be discovered. Nigel Pitman,...
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