I always thought that using more efficient energy sources, pushing the clean energy technologies such as renewable energies are important.

I believe there should be some financial incentives to make the right choice: to make them to buy the right car or not to buy a car but using public transport systems. I believe that these financial incentives are important.

The energy sector presents exceptional opportunities for governments and investors.

I love football, and I love my work.

I'm not an extreme tree-hugger. I do believe trees grow and are a useful agricultural product that can be harvested without damaging the ecology and wildlife.

For the U.S., I think we should have a carbon tax, for environmental reasons.

Even if the ocean on Enceladus starts out being as microbially poor as the pelagic ocean on Earth, which is the worst case, we still have a chance of seeing lots of organisms in the plumes.

Decarbonising our energy system is not some abstract regulatory requirement. It is an essential responsibility that we hold towards our children and grandchildren as the only way to effectively counter the threat of climate change.