We have to, in the next ten years, begin to decrease the rate of carbon dioxide emissions and then flatten it out. If that doesn't happen in ten years, we're going to be passing certain tipping points. If the ice sheets begin to disintegrate, what can you do about it? You can't tie a rope around an ice sheet.

We are on the precipice of climate system tipping points beyond which there is no redemption.

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

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

Interference with communications of science to the public has been greater during the current administration than at any time in my career.

The most difficult task, phase-out over the next 20-25 years of coal use that does not capture CO₂, is Herculean, yet feasible when compared with the efforts that went into World War II. The stakes, for all life on the planet, surpass those of any previous crisis. The greatest danger is continued ignorance and denial, which could make tragic consequences unavoidable.

Rising carbon price is essential to 'decarbonize' the economy - to remove the nation towards the era beyond fossil fuels.