Many scientists and economists also say putting a price on carbon through carbon taxes and/or cap-and-trade is necessary.

Education has failed in a very serious way to convey the most important lesson science can teach: skepticism.

Environmentali sm is really about seeing our place in world in a way that humans have always known up until very recently - that we are part of nature-utterly dependent on the natural world for our well being and survival.

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

With an estimated population of nine billion people by 2050, we cannot continue to consume resources at the same rate and maintain our quality of life.

Salmon farming-the placement of large metal or mesh net cages in the ocean to grow fish-was pioneered in Norway in the 1960s. Since then, the industry has expanded to Scotland, Ireland, Canada, the US, and Chile, but is dominated by the same multinational corporations. Wherever it is practiced, net-cage salmon farming is controversial and raises serious environmental concerns.

Less than 10% of the fuel energy burned in automobiles is translated into forward motion of the vehicle and even then most of this energy is needed to move the vehicle itself, which typically weighs 20 times more than its passengers.