As a result of the carbon-dioxide enrichment of the Earth's atmosphere, plants are now growing faster. Furthermore, global warming lengthens the growing season and increases net rainfall.

I grew up in the 1960s and wanted to become part of the great space exploration effort, but when I graduated from college in 1974, the Apollo program was over, and the country had moved into this pessimistic mode. We had entered the 'age of limits.'

People make their own fates, and if enough of us make our fate to be space explorers, perhaps we can actually get some space exploration done.

In what was called the second siege of Leningrad, thousands died, but Putin and his partners in crime got rich. Then Putin killed even more Russians when he had the FSB explode bombs in apartment buildings in Moscow in 1999 to give himself the pretext to seize dictatorial powers.

We are working with the communities in building institutional relationships with local governments and businesses to create ways to get value from the Amazonian area in order to keep the forest as the forest. This makes sense for us from the perspective of climate change and of poverty.

We've sued out-of-state power plants that are polluting our air and led a coalition of attorneys general from Connecticut, Delaware, Maryland, and Massachusetts against efforts in the U.S. House of Representatives to remove critical environmental regulations that protect New York communities from toxic pollution.

The people of each generation perceive the state of the ecosystems they encountered in their childhood as normal and natural. When wildlife is depleted, we might notice the loss, but we are unaware that the baseline by which we judge the decline is in fact a state of extreme depletion.

If you look at the state of our planet, the next generations won't be around if we consider sustainability as a gimmick.