Leaving your car running will marginally increase CO2 emissions, but it may massively reduce exposure to the toxic gases and particulates that are shortening thousands of lives.
It was not until the 1980s that the environment became a priority for the chemical industry, and it was the industry’s bid to clean up that gave birth to ‘green chemistry’.
New research shows that a catalyst made from gelatin, the same protein used to make jelly desserts, helps fuel cells be more efficient. This may offer a cheap alternative to the expensive metal-based fuel…