"Nuts can provide all the calories we need and in a more sustainable way," he says.

So how can the energy industry keep pace in a sustainable way?

Therefore, they should be encouraged to use them in a sustainable way.

"That's just not a sustainable way to run the economy, period."

Make sure the money is properly spent in a sustainable way.

The end is to maintain fish stocks in a sustainable way.

We should also like to ensure that energy is produced and used in a sustainable way.

We also need to use fossil fuels in a more sustainable way.

This is the only sustainable way of reconciliation with the past and investment in a better future.

Without growth it will not be possible to get deficits down in a sustainable way.