EarthScape

On Wednesday, Nov. 12, the European Space Agency's Rosetta mission successfully landed on the surface of comet 67P/Churyumov-Gerasimenko. Descending at a speed of about 2 mph (3.2 kilometers per hour) the lander, called "Philae," first touched down and its signal was received at 8:03 a.m. PST (11:03 a.m. EST). Partially due to anchoring harpoons not firing,…

Two new international agreements will help to save migratory birds from hunting, trapping and poisoning, and to protect their long-distance flyways. A key objective is to phase out lead shot within three years, and eliminate the toxic drug diclofenac.

The world is gaining weight and becoming less healthy, and global dietary choices are harming the environment, according to a new research report. Those are among the findings of a paper co-authored by David Tilman, a professor in the Bren School of Environmental Science & Management, and Michael Clark, a graduate student at the University of…

We know wildlife trafficking has become a huge problem for wild animals and imperiled species, but making it illegal is only part of the solution. Without the ability to identify wildlife products moving through ports, authorities have less power to stop the trade. The good news, according to a recent report published in the journal Conservation…

Roughly one-third of the U.S. population lives in the country’s 500,000 multifamily buildings, and they spend $22 billion on energy every year. Until this year, apartment and condo managers lacked the tools to measure how much energy they were wasting and compare their performance nationwide. Meanwhile, energy costs for renters have risen by 20 percent…

While it may seem that the US is one of the worst culprits when it comes to wasting resources, according to the US Geological Survey, our water consumption is improving. Water use in the United States in 2010 was estimated to be about 355 billion gallons per day (Bgal/d), which was 13 percent less than in…

Just as soldiers on sentry duty constantly adjust their behaviour to match the current threat level, dwarf mongoose sentinels exhibit flexible decision-making in relation to predation risk, new research from the University of Bristol has shown. Biologists Julie Kern and Dr Andy Radford found that decisions about when to go on duty, what position to adopt…

The “surfactant” chemicals found in samples of fracking fluid collected in five states were no more toxic than substances commonly found in homes, according to a first-of-its-kind analysis by researchers at the University of Colorado Boulder. Fracking fluid is largely comprised of water and sand, but oil and gas companies also add a variety of other…

Global warming stops at nothing – not even the groundwater, as a new study by researchers from ETH Zurich and KIT reveals: the groundwater’s temperature profiles echo those of the atmosphere, albeit damped and delayed.

In classrooms and everyday conversation, explanations of global warming hinge on the greenhouse gas effect. In short, climate depends on the balance between two different kinds of radiation: The Earth absorbs incoming visible light from the sun, called “shortwave radiation,” and emits infrared light, or “longwave radiation,” into space.Upsetting that energy balance are rising levels…