Water

Water wars in California ramp up as record drought presses on.
While we know that not having enough to drink in extreme heat, or when vigorously exercising makes people very unhappy (and quite ill), it's less clear how small changes in fluid intake affect mood and energy levels.
Ultimately, it's an important step in the vision to ensure access to clean, continuous water for everyone.. not just today, but forever.
The Internet (almost) exploded this week when Americans Against the Tea Party linked to a video with the title: "Nestlé Chairman: Water Not a Right, Should Be Given a 'Market Value' and Privatized."
Terraforming is not science fiction but reality: humans are remaking the surface of our planet. We are altering the composition of the planet's atmosphere and fundamentally changing the entire global climate.
In hot weather your body is prone to dehydration, and this actually can have an effect on your metabolism.