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Seeing the Earth through alien eyes: an extraterrestrial view of our planet

Physics World

“If I look at the next 50 years, next hundred years maybe, nobody will be able to set up a telescope that’s powerful enough to resolve surface features,” says Jonathan Jiang , an atmospheric scientist at NASA’s Jet Propulsion Laboratory in Pasadena, California, who uses Earth as a laboratory to model exoplanets. New eyes on alien worlds.

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Environmental Perspectives

Environmental Science

Congress toyed with water pollution control since 1948, but 2 years after Earth Day it passed the first comprehensive federal law, ever, to control water pollution, the 1972 Clean Water Act. There remain some problem areas; for example Boston tends to be a non-attainment area for ozone in the summer. Clean Water Act.