Every day is Earth Day, and I vote we start investing in a secure climate future right now.

If we are ever to halt climate change and conserve land, water and other resources, not to mention reduce animal suffering, we must celebrate Earth Day every day - at every meal.

Privacy isn't negotiable. It's the right of every American.

We're going to enjoy another day on orbit and we'll see you on Earth tomorrow.

This event created a complete blackout of high-frequency communications on the day-lit side of Earth, which included the entire U.S. and basically anywhere the sun was shining at this time. Communications used by emergency services along the Gulf Coast may have experienced problems due to this flare. Low-frequency navigation systems may also have experienced a period of significant degradation.

Earth Day activities take place not just on April 22 but sometimes days, even weeks, before and after that. So the calendar covers the entire months of April and May.