We live in uncertain times when it comes to the future of life on Earth.

Whether it's exploring the woods around where I grew up, or even today exploring the coastal habitats and environments where I live in New England, or in a remote wilderness we're featuring in one of my series - I love to be in the field and I love to explore.

I am really sobered by what's happening to ecosystems around our planet and to the wildlife that is to be found there.

Many scientists would argue that we are now in what is called Extinction, and it's caused by this perfect extinction storm: climate change, habitat loss, pollution, unsustainable exploitation of species and habitat resources, and of course, human population explosion. All of these factors work together and conspire to drive a species to extinction on our planet, every half an hour.

We know that when push comes to shove, [we can] drive ourselves to save our planet.

The challenge is that we live in a time where there's a lot of crap on television.

I'm a biologist. At my core, I'm a naturalist.