Hydrogen could play an key role in our future energy supply – but only if its produced from renewable electricity. Watch this short summary of the pros and cons of hydrogen as a renewable energy source: a presentation given by the WWF Climate and Energy team, at a workshop I hosted in the European Parliament just before the end of January. Hydrogen fuel cell technology is now on the agenda in the UK. We must ensure the Government gets it right. It will not solve all our energy problems, but it could help play a part.