In 1970, U.S. Sen. Gaylord Nelson created Earth Day to bring the issue to national attention, with 20 million demonstrators across the country speaking out against the effects of 150 years of ...

Earth Day began as a protest in 1970, but its meaning has evolved. Here’s how it changed - and what it represents today.

At sunrise on a cool April morning, volunteers kneel in the dirt — hands muddy, spirits high — planting the seeds of a greener future, one sapling at a time. But for many, Earth Day is about more than ...

Earth Day started in 1970 when people — including Wisconsin Sen. Gaylord Nelson — brought attention to the impact oil spills, pollution and smog were having on the planet. "Then in January 1969, he ...