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New research supports the creation of more marine reserves in the world’s oceans because, the authors say, fish can evolve to be more cautious and stay away from fishing nets.

Clouds inspire art and thought, but few natural phenomena are as important to weather, climate or water, the United Nations meteorological agency today said, launching a digital cloud atlas to celebrate World Meteorological Day.

The hills of West Texas rise in waves around the Hobby-Eberly Telescope, a powerful instrument encased in a dome that looks like the Epcot ball. Soon, it will become more powerful still: Scientists recently primed the telescope to find evidence of dark energy in the early universe, prying open its eye so it can see and process a wide swath of sky. On April 8, scientists will dedicate the new telescope, capping off the $40 million upgrade and beginning the real work.

Once largely confined to the sunny Southwest, utility-scale solar power plants are now being built everywhere from Minnesota to Alabama to Maine. Aided by plunging costs and improving technologies, these facilities are expected to provide a big boost to U.S. solar energy production.

Data shows that global CO2 emissions have remained roughly the same for the third year in a row. Although that’s good news for the fight against climate change, it’s important to put this data in perspective.