Take two issues that are often in the news these days — carbon capture and food miles.
Would it not be possible to filter out the heavy metals, radioactive contamination and other nasties from coal-fired power station chimneys and re-direct the warm, moist carbon dioxide-laden air through a few thousand greenhouses full of tomatoes and tulips?
This local supply of electricity could also be used to power lights when the sun doesn't shine.
The other (possibly more serious) option that is currently being investigated is to capture carbon using algae to produce oil, which is an interesting counterpoint to your article 'Nature study' (
News, 10 March) about using artificial photosynthesis in aerogels.
Robin Herrick
by email
Massive new Coventry campus targets 60GWh battery output
Where will all the raw materials come from for the manufacturing process? How will they be transported to the factory and what is going to be done with the various scrap and residues?