Agriculture is responsible for around ten to twelve percent of all greenhouse gases attributable to human activities. This raises the question of how these emissions could be reduced. A recent study has investigated - for the first time - the full range of factors that contribute to greenhouse gas emissions, namely soil and climate conditions, the agricultural model and the farming intensity on both organic and conventional holdings.
Scientists have established that an electron beam can be accelerated by a laser in free space. This has never been done before at high energies and represents a significant breakthrough. It also may have implications for fusion as a new energy source.
First Solar, Inc. announced it set a new world record for cadmium-telluride (CdTe) photovoltaic solar cell conversion efficiency, achieving 18.7 percent cell efficiency in tests confirmed by the U.S. Department of Energy's National Renewable Energy Laboratory (NREL).
A new study shows that reaching the 3 energy-related objectives proposed by the United Nations in their Sustainable Energy for All (SE4All) initiative, launched in 2011, would reduce emissions of greenhouse gases that contribute to climate change and, in combination with other measures, could help keep global temperature rise from exceeding the internationally agreed target level of 2 C.
Applying its atmospheric expertise to solar energy, the National Center for Atmospheric Research (NCAR) is spearheading a three-year, nationwide project to create unprecedented, 36-hour forecasts of incoming energy from the Sun for solar energy power plants.
The commitment to reduce greenhouse gas emissions should be allocated based on countries' historic responsibility for the emissions. This logic was recognized early on in climate negotiations. But the countries are still disputing how it should be interpreted and applied.
The U.S. Environmental Protection Agency (EPA) today announced the nominations for the 2013 Presidential Green Chemistry Challenge Awards for companies and institutions that can design chemicals or a new product that help protect public health and the environment.