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Climate change, causes and impacts

Last modified December 01, 2011 10:21

Climate change, causes and impacts

Complexity and determining dangerous levels of climate impacts — Last modified July 21, 2014 09:11
Chris Huntingford analyses the different responses of water scarcity for humans and water stress for ecosystems as climate changes.
Termites, fungi and climate change — Last modified June 25, 2014 09:23
Climate change models could have a thing or two to learn from termites and fungi, according to a new study released this week.
Water & Climate Risks Facing U.S. Corn Production — Last modified June 23, 2014 14:25
Water & Climate Risks Facing U.S. Corn Production
Saving tropics could cut emissions — Last modified June 23, 2014 14:21
Reducing deforestation in the tropics could cut carbon dioxide emissions by up to one-fifth, a university of Edinburgh study shows.
Babbling brooks adding to climate change? — Last modified June 11, 2014 09:15
Babbling brooks adding to climate change?
Arctic study sheds light on tree-ring divergence problem — Last modified May 27, 2014 09:16
Changes in tree-ring density in the Arctic may be evidence of changes in light intensity during the trees' growth, according to a new study by San Francisco State University researcher Alexander Stine.
The State of Rain — Last modified May 27, 2014 09:13
UCSB's Climate Hazards Group developed a satellite-based rainfall monitoring dataset to support the early detection of drought globally.
Hotspots of climate change impacts in Africa: making sense of uncertainties — Last modified May 16, 2014 08:01
Hotspots of climate change impacts in Africa: making sense of uncertainties
Thawing permafrost releases more methane — Last modified May 13, 2014 20:46
The world’s permafrost contains roughly 227 Gigatonnes of carbon – more than one-third of the current amount of carbon in the atmosphere. As permafrost thaws, the decomposing soil releases greenhouse-gas emissions in the form of methane and carbon dioxide, setting up a positive feedback loop that causes temperatures to rise further and thaw more permafrost.
Arid areas absorb unexpected amounts of carbon — Last modified April 14, 2014 08:55
esearchers led by a Washington State University biologist have found that arid areas, among the biggest ecosystems on the planet, take up an unexpectedly large amount of carbon as levels of carbon dioxide increase in the atmosphere. The findings give scientists a better handle on the earth's carbon budget – how much carbon remains in the atmosphere as CO2, contributing to global warming, and how much gets stored in the land or ocean in other carbon-containing forms.
Heat stress while crops flower could harm yields — Last modified March 31, 2014 15:42
As climate changes, crops that experience high temperatures during their flowering period could set less seed. Indeed, extreme heat stress alone could reduce projected yields of maize by 45% over the next 100 years, according to a team from the UK and Canada.
OU study suggests non-uniform climate warming affects terrestrial carbon cycle, ecosystems and future predictions — Last modified March 13, 2014 09:29
A recent University of Oklahoma study of five decades of satellite data, model simulations and in situ observations suggests the impact of seasonal diurnal or daily warming varies between global regions affecting many ecosystem functions and services, such as food production, carbon sequestration and climate regulation. The effects of non-uniform climate warming on terrestrial ecosystems is a key challenge in carbon cycle research and for those making future predictions.
Volcanoes contribute to recent warming 'hiatus' — Last modified March 07, 2014 12:51
Volcanic eruptions in the early part of the 21st century have cooled the planet, according to a study led by Lawrence Livermore National Laboratory. This cooling partly offset the warming produced by greenhouse gases.
Global warming 'pause' due to unusual trade winds in Pacific ocean, study finds — Last modified February 20, 2014 08:57
The contentious "pause" in global warming over the past decade is largely due to unusually strong trade winds in the Pacific ocean that have buried surface heat deep underwater, new research has found.
Dry times in the Amazon add carbon dioxide to the atmosphere — Last modified February 18, 2014 13:45
As the climate changes, the Amazon Basin may release more carbon dioxide into the atmosphere than it absorbs, according to a new study published in the journal Nature.
Complexity and determining dangerous levels of climate impacts — Last modified January 24, 2014 11:23
A recent paper (Garten et al 2013 Environ. Res. Lett. 8 034032) finds very different global warming thresholds of concern between water scarcity and ecosystem changes.
Drought and climate change: an uncertain future? — Last modified January 10, 2014 16:17
Drought frequency may increase by more than 20% in some regions of the globe by the end of the 21st century, but it is difficult to be more precise as we don’t know yet how changes in climate will impact on the world’s rivers.
Assessing the impact of climate change on a global scale — Last modified January 10, 2014 16:15
Thirty research teams in 12 different countries have systematically compared state-of-the-art computer simulations of climate change impact to assess how climate change might influence global drought, water scarcity and river flooding in the future.
EASAC warns Europe to prepare for future extreme weather events — Last modified December 23, 2013 08:58
Europe needs to plan for future probabilities of extreme weather. Heat waves, floods and storms do not respect national frontiers, so there is a need for action at both national and EU levels.
Borders of Earth's 'safe operating space' rock and roll — Last modified December 23, 2013 08:39
According to James Hansen, an atmospheric physicist at Columbia University, US, we passed the 'tipping point' for atmospheric carbon dioxide some years ago, when concentrations reached 350 ppm, and Earth's climate has now tipped into a new irreversible state, from which there is no route of return. But does our planet really have such clearly defined boundaries?
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