This is today's edition of The Download, our weekday newsletter that provides a daily dose of what's going on in the world of ...

On January 20, his first day in office, US president Donald Trump signed an executive order to withdraw the US from the World ...

Hydrogen can be used in chemicals and as a green fuel. Vast underground stores could help make it an economical option.

Ammonia, used in fertilizer, is essential to our lives. Addis Energy is trying to make the chemical underground.