Researchers previously thought that sunlight would only ever break down plastics in the sea into microplastics – which then persist in the environment forever. But analysis of real-world bags produced by retailers showed that the effect of sunlight is often very different.
Researchers who estimate how much of the world's coal, oil and natural gas reserves should be left unburned to slow the increase in climate-changing gases in the atmosphere have come up with a new, bigger estimate of how much should be left in the ground.
As climate change and gaps in forest management create more intense and deadly wildfire seasons, firefighting resources are increasingly stretched to the limit. Researchers like Chris Dunn hope their tools can help ease that pressure by making sure scarce fire resources are deployed as efficiently as possible.