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Tag: ecosystems
Climate Change Morphs Ecosystems In Blink Of Geologic Time
2015-09-13 23:48:00| Climate Ark Climate Change & Global Warming Newsfeed
St. Louis Post-Dispatch: As atmospheric CO2 (carbon dioxide) levels continue to rise, enormous tree-planting campaigns are often touted among ways humans can try and limit climate change. In Africa, where some regions have been seen as ideal for this type of project, Guy Midgley has a message: Hang on. The botany and zoology professor at Stellenbosch University in South Africa explained that trees are already moving into African grasslands. Higher levels of carbon dioxide are beginning to change those ecosystems into...
Tags: time
change
climate
climate change
Tree planting can harm ecosystems
2015-09-12 19:02:00| Climate Ark Climate Change & Global Warming Newsfeed
ScienceDaily: The world's grassy biomes are key contributors to biodiversity and ecosystem services, and are under immense pressure from conversion to agriculture and tree planting, report Joseph W. Veldman, of Iowa State University, and his colleagues in an article for the October issue of BioScience. The authors argue that forest- and tree-focused environmental policies and conservation initiatives have potentially dire ecological consequences for undervalued ecosystems, such as grasslands, savannas, and open-canopy...
Tags: tree
harm
planting
ecosystems
As species adapt to a warming climate, ecosystems change
2015-07-18 15:02:00| Climate Ark Climate Change & Global Warming Newsfeed
Environmental News Network: If it seems like you're pulling more bass than trout out of Ontario's lakes this summer, you probably are. Blame it on the ripple effect of climate change and warming temperatures. Birds migrate earlier, flowers bloom faster, and fish move to newly warmed waters putting local species at risk. To mitigate the trend and support conservation efforts, scientists at the University of Toronto (U of T) are sharing a way to predict which plants or animals may be vulnerable to the arrival of a new species....
Tags: change
species
warming
climate
Are marine ecosystems headed new productivity regime?
2015-07-16 19:02:00| Climate Ark Climate Change & Global Warming Newsfeed
ScienceDaily: Human-induced carbon dioxide (CO2) emissions to the atmosphere are projected to rise to up to 30 gigatonnes of carbon per year by 2100, assuming a "business-as-usual" scenario. As a result, global mean temperatures are projected to increase by almost five degrees Celsius. According to a team of scientists from the Climate Change Research Centre at the University of New South Wales (UNSW), Australia, the Australian Research Council's Centre of Excellence for Climate System Science and GEOMAR Helmholtz...
Tags: marine
productivity
regime
headed
Climate change compounding threats to Australia's ecosystems, studies find
2015-07-06 06:36:00| Climate Ark Climate Change & Global Warming Newsfeed
Guardian: Climate change is compounding existing threats to Australias forests, wetlands and deserts, with several key landscapes now at risk of total collapse, a landmark series of new studies have found. An assessment of 13 ecosystems across Australia, ranging from the wet tropics of far north Queensland to rare shrubland in Western Australia, found what researchers call a worrying climate change impact that adds to existing harm caused by urban development, agriculture and invasive species. The...
Tags: find
change
studies
climate
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