In megacities across the world, including Mexico City, Jakarta, New Delhi, Beijing, Los Angeles, Paris and London, humans are polluting air at a rate that Earth can no longer sustain.

A few years ago, convincing meat-free “meat” was nothing more than a distant dream for most consumers.

As you pack your bags for the cottage or campground this weekend, don’t forget to bring light clothes with long sleeves — and a truckload or two of insect repellent.

Mercury pollution is a problem usually associated with fish consumption. But some people in China, the world’s largest mercury emitter, are exposed to more methylmercury from rice than they are from fish.

It’s hard not to empathize with the people in the smoggy images of New Delhi or Ulaanbataar or Kathmandu, often wearing masks, walking to school or work though soupy cloudiness.

There is growing evidence to suggest that air pollution does not just affect our health – it affects our behavior too.

Biologically speaking, humans are omnivores and we like to eat a variety of things. There is increasing interest in all sorts of alternative sources of protein as we diversify our diets. This trend is accelerating in 2018.