Fukushima is the most terrifying situation I can imagine.

All those hours exploring the great outdoors made me more resilient and confident.

Some argue we should get coal, oil and gas out of the ground as quickly as possible, build more pipelines and make as much money as we can selling it here and abroad. Their priorities are the economy and meeting short-term energy needs so we can live the lives to which we've become accustomed.

Ultimately we need to recognize that while humans continue to build urban landscapes, we share these spaces with others species.

Humans are now the most numerous mammal on the planet. There are more humans than rats or mice. Humans have a huge ecological footprint, magnified by their technology.

Change is never easy, and it often creates discord, but when people come together for the good of humanity and the Earth, we can accomplish great things.

We are playing Russian roulette with features of the planet’s atmosphere that will profoundly impact generations to come. How long are we willing to gamble?