You have to realise that touching is a real violation of personal space.

The cheapest and most efficient way of slowing down global warming is to protect and restore the forests, particularly the tropical forests

You can't do everything. You can't do health and forestry and agriculture. You've got to focus and do one or the other.

I like some animals more than some people, some people more than some animals.

Here we are, arguably the most intelligent being that's ever walked planet Earth, with this extraordinary brain ... and yet we're destroying the only home we have.

You know the old expression "We haven't inherited the world from our parents, we've borrowed it from our children"? Well it's just not true. We haven't borrowed anything.

There would be very little point in my exhausting myself and other conservationists themselves in trying to protect animals and habitats if we weren't at the same time raising young people to be better stewards.