Should we be carbon neutral?
Carbon dioxide is one of six greenhouse gases. It's not the most powerful, but it does make up about 90% of our emissions.
On paper, replacing fossil fuels with biofuels looks like a great way to cut CO2. Whereas fossil fuels release age-old carbon into the air, burning biofuels only releases as much CO2 as the biofuel crops have been absorbing from the air as they grow.
Sadly there's a catch - emissions from burning the biofuel are only part of the story...
| 
Global CO2 emissions continue to rise - much to many people's dismay.
Image: Rosa Jiménez Cano |
|
