The contrails conspiracy is not just garbage, it's letting aviation off the hook | George Monbiot

The real issue - global warming caused by aircraft emissions - calls on us to act. But focusing on 'chemtrails' absolves people of the responsibility to do so

You spend years trying to get people to take an interest in aircraft emissions. Then at last the issue gets picked up - but in the most perverse way possible.

The pollutants spread by planes are a major issue. They make a significant contribution to global warming, yet they are excluded from international negotiations, such as the conference taking place in Paris. As a result, aviation's expansion is unchecked by concerns about climate change.