It would be immoral to leave young people with a climate system spiraling out of control.

I have been described as the grandfather of climate change. In fact, I am just a grandfather and I do not want my grandchildren to say that grandpa understood what was happening but didn't make it clear.

The urgency derives from the nearness of climate tipping points.

The trains carrying coal to power plants are death trains. Coal-fired power plants are factories of death.

Burning all the fossil fuels will destroy the planet we know, Creation, the planet of stable climate in which civilization developed.

We're handing them [young people & future generations] a climate system which is potentially out of their control. We're in an emergency: you can see what's on the horizon over the next few decades with the effects it will have on ecosystems, sea level and species extinction

What we are doing to the future of our children, and the other species on the planet, is a clear moral issue.