Humans are now the most numerous mammal on the planet. There are more humans than rats or mice. Humans have a huge ecological footprint, magnified by their technology.

With the world's human population now at seven billion and growing, and the demand for technology and modern conveniences increasing, we can't control all our negative impacts. But we have to find better ways to live within the limits nature and its cycles impose.

It's time we stopped ignoring the environment. Let's not let another election go by without making this a high priority.

For the sake of our health, our children and grandchildren and even our economic well-being, we must make protecting the planet our top priority.

More than any other time in history, the 1990s will be a turning point for human civilization.

The damage that climate change is causing and that will get worse if we fail to act goes beyond the hundreds of thousands of lives, homes and businesses lost, ecosystems destroyed, species driven to extinction, infrastructure smashed and people inconvenienced.

Birds are, especially canaries, are super sensitive to hydrogen sulfide and sour gas.