The Earth remains humanity's only home in all the Universe, and the only planet that we know of capable of supporting human beings. Today, Earth Day, it's more important than ever to appreciate it. Forbes celebrates with some of the best photos of Earth from space.
Earth Day Network reminds us that 'all living things have an intrinsic value, and each plays a unique role in the complex web of life. We must work together to protect endangered and threatened species: bees, coral reefs, elephants, giraffes, insects, whales and more.'
NOAA has tips and 14 more great reads for Earth Day including the difference between weather and climate change.
The Sierra Club encourages people to consume less but has some gift ideas for special occasions, including books.