bark beetles

This post contributed by Liza Lester, ESA communications officer Four hundred miles above the Earth’s surface, a satellite slides into lonely oblivion. After collecting and broadcasting earthly imagery for a remarkable quarter century past its expected 3-year lifespan, Landsat 5 is failing. Over the years, US Geological Survey engineers have contrived quite a few patches and work-arounds for malfunctions on…

This post contributed by Jesse A. Logan, retired research entomologist living in Emigrant, Montana. The Greater Yellowstone Ecosystem (GYE) is an ecological reserve of regional, national and international significance. This collection of National Parks, National Forests, wildlife reserves and tribal lands is generally recognized as one of the last remaining large, nearly intact, ecosystems of the Earth’s northern temperate region….

  Here are some highlights from the latest ESA Policy News by ESA’s Science Policy Analyst, Piper Corp. Read the full Policy News here.    COPENHAGEN SUMMIT ENDS IN NON-BINDING ACCORD–The UN climate summit in Copenhagen concluded on December 19, with the world’s largest emitters vowing to cut emissions and help developing countries adapt to the changing climate, and with…