atmospheric methane is the reason early life appeared and evolved on earth. oxygen that supported human life turned up much later. i often think of a friend's f

atmospheric methane is the reason early life appeared and evolved on earth. oxygen that supported human life turned up much later. i often think of a friend's favourite quip: life is just one fart's desire to create another fart. even now, we dont entirely understand climate change/global warming. the greenhouse effect is actually increasing canopy cover of many existing forests.