Even if we planted a tree on every square yard available in the planet by the end of the century we would only capture at most 10 percent of the CO2 we need to reduce. This does not mean that we should not plant trees; we should, for biodiversity's sake, and for our long-term future together with the other species.

We are in the midst of the 6th largest extinction event in the history of the plant and the first caused by human action.

To survive, humans need food, water, and air. Yet biodiversity, the Earth's bodies of water, and the planet's atmosphere are all under threat.

After denial comes anger and finally, acceptance.

Carbon negative power plants can provide energy while they overcome poverty and change economic values in the right direction.

As difficult as it is to eliminate the risk of nuclear warfare, it requires fewer changes to the global economy than does averting or reversing climate change.

The transformation of capitalism is unstoppable because we need limits on resources for humans to survive.