This is the Ganges River basin (photo by NASA). Isn't it beautiful?
More satelite images of the earth can be found here.
When the President of the United States pitches halting the increase in greenhouse gas emissions by 2025 as a "rational and balanced approach," let alone as a national commitment to sustainability, it is worth taking a moment to remind ourselves what a beautiful and yet fragile planet we call home. Especially on earth day.