Thursday 26 April 2012
Do urban 'heat islands' hint at trees of future?ScienceDaily.com | 26 Apr 2012
A new study shows that common native red oak seedlings grow as much as eight times faster in New York's Central Park than in more rural, cooler settings in the Hudson Valley and Catskill Mountains. Red oaks and their close relatives dominate areas ranging from northern Virginia to southern New England, so the study may have implications for changing climate and forest composition over a wide region.
Study finds surprising Arctic methane emission sourceScienceDaily.com | 26 Apr 2012
The fragile and rapidly changing Arctic region is home to large reservoirs of methane, a potent greenhouse gas. As Earth's climate warms, the methane, frozen in reservoirs stored in Arctic tundra soils or marine sediments, is vulnerable to being released into the atmosphere, where it can add to global warming. Now a multi-institutional study has uncovered a surprising and potentially important new source of Arctic methane: the ocean itself.
Geophysicists employ novel method to identify sources of global sea level riseScienceDaily.com | 26 Apr 2012
As the Earth's climate warms, a melting ice sheet produces a distinct pattern of sea level change known as its sea level fingerprint. Now, geophysicists have found a way to identify the sea level fingerprint left by a particular ice sheet, and possibly enable a more precise estimate of its impact on global sea levels.
Northern Canada feels the heat: Climate change impact on permafrost zonesScienceDaily.com | 26 Apr 2012
As climate change in the near future is likely to bring raised temperatures at northern latitudes, the characteristics of permafrost could greatly change. Changes to permafrost could have serious impact on existing and future northern infrastructures such as pipelines and could significantly affect...
Sea change in salinity heralds shift in rainfallReuters | 26 Apr 2012
SINGAPORE (Reuters) - Scientists have detected a clear change in salinity of the world's oceans and have found that the cycle that drives rainfall and evaporation has intensified more than thought because of global warming.
U.S. voters favor regulating carbon dioxide: surveyReuters | 26 Apr 2012
WASHINGTON (Reuters) - Three out of four U.S. voters favor regulating carbon dioxide as a greenhouse-gas pollutant, and a majority think global warming should be a priority for the president and Congress, a survey of American attitudes on climate and energy reported on Thursday.
Africa: Rio+20 Must Tackle Leaders' Economic Concerns - Climate ExpertAllAfrica.com | 26 Apr 2012
[AlertNet] Hanoi - The upcoming U.N. Conference on Sustainable Development in Rio de Janeiro could be more positive for the environment than recent international climate summits as long as it attracts enough world leaders and tackles economic concerns as well as environmental challenges, according to a top climate expert.
Nigeria: Celebrating World Earth DayAllAfrica.com | 26 Apr 2012
[Daily Trust] For the last 40 years, Earth Day has been celebrated around the world on April 22 to call attention to some of our most pressing environmental and social problems, including climate change, biodiversity loss, dwindling natural resources and other devastating environmental hazards which Nigeria has been battling with.
Gambia: EU Prepares for Rio+20AllAfrica.com | 26 Apr 2012
[Foroyaa] In recent weeks, EU Heads of Government in the European Council and EU Member State representatives in the Environment Council have adopted important conclusions which specify in clear terms a number of EU objectives for Rio+20 (the United Nations Conference on Sustainable Development). Negotiations for the international conference which takes place from 20-22 June 2012 are reaching a crucial stage.
'This is the greenest government ever'Guardian Unlimited | 26 Apr 2012
Prime minister tells leaders at a world energy summit that the UK government has achieved its aimThe government has achieved its aim of being the "greenest ever", David Cameron said on Thursday, in his first significant remarks on the environment since reaching office."When I became prime minister...
Overconsumption and populationGuardian Unlimited | 26 Apr 2012
The Royal Society says global growth in consumption and population is causing 'pressing' environmental problems, but that reducing consumption in the short-term is of 'utmost urgency'. Leo Hickman, with your help, investigates. Post your views below, email firstname.lastname@example.org or tweet...
Jenny Jones is 'greenest mayoral candidate'Guardian Unlimited | 26 Apr 2012
Greenpeace and Friends of the Earth report shows Green party candidate coming first in four out of six environmental categoriesKen's No1 for climate change and Boris is top for green spaces, but in the first comprehensive analysis of the environmental manifestos, pledges and published records of...
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