Images of wildfires are powerful, but can make climate catastrophe seem like something spectacular and distant. So some artists are focusing on the plants and bugs in our immediate surroundings.
Episodes of reported PFAS contamination are never far from the news. Here's a run-down of what PFAS is, and why we have little reason to worry about its potential effects on our health.
The number of substances emitted into the atmosphere is immense and growing, but some are particularly harmful to health and are subject to increased monitoring.
When present in the lowest atmospheric layer, ozone becomes a concern for human and plant health.