This Just In
More than 40 years after the first Earth Day, many riddles still remain when it comes to our planet.
Tidal power can do what wind and solar can’t: provide reliable energy, right when you need it.
A quarter of a billion years ago Africa slammed into North America and left a scar that can be seen today with special instruments.
Intense heat during meteor impacts forged tiny bits of glass that trapped fragments of ancient plant life in Argentina. Could the same process have entombed signs of life on Mars? Continue reading →
To kick off Earth Day, check out a snapshot of remarkable moments from around the world.
Chilly interruptions of spring revelry may someday disappear as the planet warms. Continue reading →
A careless teenager and a little urine was enough for Portland to flush 38 million gallons of otherwise clean water.
For Earth Day, gardeners can order open-source seeds to help ensure vegetable, fruit and grain seeds are available to everyone.
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