at_answer_text_other
Air quality is better than it was. ...
Particles are more dangerous than gases. ...
Air pollution is much worse in Beijing than London. ...
People die from breathing difficulties. ...
It's not like we're breaking the law, or anything. ...
Tube dust is 'safe' ...
Diesel is better for the environment than petrol.
at_explanation_text_other
Pollution is one of the biggest global killers, affecting over 100 million people. That's comparable to global diseases like malaria and HIV. Cleanups can save animals' lives and discourage people from littering in the future.
