Updated: 57 min 52 sec ago
A U.N. report emphasized that the world’s food supply is at considerable risk — a threat that could have serious consequences for the poorest nations.
Greenhouse gas emissions from food production may threaten the United Nations climate target of limiting global warming to two degrees Celsius, according to research. Carbon dioxide emissions from the energy and transportation sectors currently account for the largest share of climate pollution. However, a study from Chalmers now shows that eliminating these emissions would not guarantee staying below the UN limit. Emissions from agriculture threaten to keep increasing as global meat and dairy consumption increases.
Pioneering new research could have a major impact on climate and environmental science by drastically transforming the perceived reliability of key observations of precipitation, which includes rain, sleet and snow. The ground breaking study examines the effect that increased aerosol concentrations in the atmosphere, emitted as a result of burning fossil fuels, had on regional temperature and precipitation levels.
The new U.N. climate panel report on impacts of global warming sees substantial shifts already under way and much more to come.
The move is the latest in a series of administration actions aimed at addressing climate change without waiting for congressional action.
Though countries like Bangladesh have contributed little to the industrial pollution driving climate change, they will suffer the most from the devastating consequences.
Daniel M. Gallagher, an S.E.C. commissioner, argued that the agency must clamp down on the filing of shareholder proposals unrelated to the long-term interests of corporations, such as those relating to climate change or sustainability.
Scientists argue that the study of natural history has waned in recent decades in developed countries. Declining course requirements and support for herbaria are among the documented evidence. Yet costly mistakes in policy relating to natural resources, agriculture, and health might have been avoided by paying attention to organisms' natural history, and future policies will be improved if natural history knowledge is used and expanded. New technologies offer ways to increase natural history research partnerships.
Until recently, most of the world’s energy supplies have come from coal, oil and gas. Scarcity of natural resources, surging energy prices and global warming had focused attention on renewable energy, and consequently, alternative approaches to producing bio-energy. Over the last five years, one particular technology for the production of biocoal - Hydrothermal Carbonization (HTC) - has undergone significant development and has become a subject of major scientific interest.
By inducing the pore opening of leaves, researchers have developed a strategy for enhancing photosynthesis and plant growth, which may be applied to crops and fuel plants to support global food production and a sustainable low-carbon society.
Using high-powered DNA-based tools, a recent study identified soil microbes that negatively affect ragweed and provided a new understanding of the complex relationships going on beneath the soil surface between plants and microorganisms. The study allowed researchers to observe how three generations of ragweed and sunflower interacted with the microbial community in the soil. The plants interact with each other indirectly due to the differing effects they each have on the microbes in the soil.
A sculptor’s view of politicians yammering in the face of rising seas and a warming climate.
Large amounts of carbon dioxide equivalents taken up by plants on land are returned to the atmosphere from aquatic environments. The findings were that emissions of carbon dioxide equivalents (as methane and carbon dioxide) from lakes, running water, dams, ponds, and wells correspond to on an average 42% of the expected natural carbon sink in India. This carbon sink may therefore be smaller than expected, illustrating that we do not have full knowledge on the natural greenhouse gas balance.
United Nation’s World Meteorological Organisation says although there is no definitive link, events were consistent with human-induced climate change
On trips that are both listening tour and sales pitch, Gina McCarthy, the E.P.A. administrator, is trying to counter a fight against planned rules limiting emissions by power plants.
Spring snow goes downhillEarlier melting a threat to water supply, Arctic iceIn recent years, spring snow has vanished even more quickly than computer models and climate scientists had expected, posing a research challenge and a potentially serious risk for water supplies.
Bob Henson • March 27, 2014 | At some point in a typical winter, almost half of the entire Northern Hemisphere’s land area is plastered with snow cover. You’d expect that snow to disappear in the spring, and, even after this unforgiving U.S. winter, most of it will. However, in recent years, spring snow has been vanishing even more quickly than computer models and climate scientists had expected.
Far beneath the surface of the ocean, deep currents act as conveyer belts, channeling heat, carbon, oxygen and nutrients around the globe. A new has found that recent climate change may be acting to slow down one of these conveyer belts, with potentially serious consequences for the future of the planet's climate.
Growing season gains do not offset carbon emissions from permafrost thaw, new research shows. Permafrost contains three to seven times the amount of carbon sequestered in tropical forests. The warming climate threatens to thaw permafrost, which will result in the release of carbon dioxide and methane into the atmosphere creating feedbacks to climate change -- more warming and greater permafrost thaw.
Could refrigeration technology -- against all the odds -- kick-start carbon dioxide storage in the North Sea? All over the world, scientists are on the hunt for solutions that will allow carbon dioxide to be captured from large power stations and industrial plants. Many of the methods in use today employ chemicals or advanced materials to extract carbon dioxide from flue gases. But now, a chilly alternative is showing signs of heating up. When carbon dioxide-rich gases are compressed and refrigerated, the carbon dioxide turns into a liquid -- like steam on a cold bathroom mirror -- and can be drawn off.
The value of forests and tree-based ecosystems extends far beyond carbon sequestration; they are the foundation of sustainable societies. A new report promotes REDD+ and the Green Economy as together providing a new pathway to sustainable development that can benefit all nations. It claims this approach can conserve and even boost the economic and social benefits forests provide to human society.