EPA awards grants to monitor air quality in 37 states

The Environmental Protection Agency on Thursday awarded grants for projects to monitor air quality in 37 states, with a focus on minority communities and other areas overburdened by pollution.

Choking on factory waste: the Nile's rising scourge

As tourists pose for selfies on the shores of Lake Victoria in Uganda, factories within spitting distance of the source of the Nile dump their waste directly into Africa's longest river.

Climate Questions: How does carbon dioxide trap heat?

That carbon dioxide and other greenhouse gases trap heat is something scientists have known about for more than a 150 years. The underlying concept behind climate change is simple enough that school children can replicate ...

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