The first Arbor Day in the world was celebrated in the small Spanish village of Villanueva de la Sierra in 1805.
Scientists have linked a swarm of small earthquakes west of Fort Worth, Texas, to nearby natural gas wells and wastewater injection.
On Earth Day 2015, humanity faces increasing environmental dangers, but movements to solve the issues are growing.
Earth Day encourages all citizens to help protect our environment and contribute to a healthy, sustainable world.
"It's all well and good that the wealthy are having their lawns painted green, but that's not a solution."
Grijalva, who chairs the congressional committee and is a member of the Progressive Caucus, said, "40 years of environmental policy issues are under attack."
This is the science of climate change. It is no longer up for debate.
Ward Valley, Calif., was decided upon in 1988 as the preferred location for a nuclear waste dump to be operated by U.S. Ecology.
Activists attended a forum on proposed climate and environmental legislation for New York City.
"We find that a solid majority of Catholics think global warming is happening (70 percent)."