Global warming isn’t a prediction. It is happening. That is why it was so troubling to read a recent interview with President Obama in Rolling Stone in which he said that Canada would exploit the oil in its vast tar sands reserves “regardless of what we do.” If Canada proceeds, and we do nothing, it…
U.S. eighth graders did slightly better last year on a national science test than did their counterparts in 2009. But what that result says about the state of science in U.S. schools is open to debate. A 2-point rise to 152 (on a scale from 0 to 300) is part of what Jack Buckley, head…
A conference on feeding the world must also feed itself. For the New America Foundation’s recent “Feeding the World While the Earth Cooks,” the restaurant seems like it was chosen specifically to highlight the inherent tensions. Nora describes itself on an awning as “certified organic, exciting, seasonal, elegant dining, innovative, enjoy, creative, memorable, fresh, healthy,…
Wherever there is coal, there will be fire. For centuries, we have dug up the combustible rock to power our industries, and we continue to rely on it to light our homes and keep the wired world humming. But each year millions of tons of coal are burned inadvertently, too – in underground fires that…
Efforts to promote sustainable development must tap into technologies developed locally, driven by community needs and priorities. The products of modern science and technology (S&T), from chemical pesticides to carbon-emitting combustion engines, are frequently blamed — with some justification — for the unsustainable use of the planet’s resources. At the same time S&T offers a…
Vegetation, such as a patch of prairie or a forest stand, is more productive in the long run when more plant species are present, a new University of Minnesota study shows. The unprecedented long-term study of plant biodiversity found that each species plays a role in maintaining a productive ecosystem, especially when a long time…
Plants flowering 8.5 times faster than predicted; changes have knock-on effect for food chain, ecosystems
To slow climate change the world will either have to put the brakes on economic growth or change the way the world’s economies work, scientists say. A study by University of Michigan researchers assessed the effects of several factors on year-to-year changes in atmospheric concentrations of carbon dioxide. Researchers looked at two natural phenomena believed…
Large wind farms slightly increase temperatures near the ground as the turbines’ rotor blades pull down warm air, according to researchers who analyzed nine years of satellite readings around four of the world’s biggest wind farms. The study showed for the first time that wind farms of a certain scale, while producing clean, renewable energy,…
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. The finding published in the journal Science, helps refine estimates of how different parts of the globe will be affected by increased rainfall…