Teddy Roosevelt of course was a great outdoorsman all his life.

We must recognize that we're all part of a web of life around the world. Anytime you extinguish a species, the consequences are serious.

If we continue to address the issue of the environment where we live as though we're the only species that lives here, we'll create a disaster for ourselves.

In the state of Wisconsin it's mandated that teachers in the social sciences and hard sciences have to start giving environmental education by the first grade, through high school.

As the scale of economic activity increases until capitalism affects everything, from the atmosphere to the deep ocean floor, the entire planet becomes a sacrifice zone: we all inhabit the periphery of the profit-making machine.

Being told about the effects of climate change is an appeal to our reason and to our desire to bring about change. But to see that Africans are the hardest hit by climate change, even though they generate almost no greenhouse gas, is a glaring injustice, which also triggers anger and outrage over those who seek to ignore it.

We seek peace, knowing that peace is the climate of freedom.

I have not made any suggestions about climate change. This is more about blending or shifting the conversation about the environment versus the economy. It's just such an old, outdated conversation.