Just as human activity is upsetting Earth's carbon cycle, our actions are altering the water cycle.

But human borders mean nothing to air, water, windblown soil or seeds or migrating fish, birds or mammals.

Although they [light and medium trucks] have only 5% of the transportation market..., they account for fully 35% of greenhouse gas emissions from freight transportation.

Most North Americans know that human-caused global warming is real, even if political leaders don't always reflect or act on that knowledge.

If we humans are good at anything, it’s thinking we’ve got a terrific idea and going for it without acknowledging the potential consequences or our own ignorance.

Our identity includes our natural world, how we move through it, how we interact with it and how it sustains us.

My parents survived the Great Depression and brought me up to live within my means, save some for tomorrow, share and don't be greedy, work hard for the necessities in life knowing that money does not make you better or more important than anyone else. So, extravagance has been bred out of my DNA.