The author of today’s post, Lisa Moore, Ph.D., is a scientist in the Climate and Air Program.
If you’re in or near a big city, you’ve probably heard your local news give ozone alerts. Those warnings mean that smog levels are high enough to affect your lungs. Even moderate pollution causes respiratory problems for kids with asthma. Really high levels of ozone make it dangerous for even the healthiest adult to be outdoors.
Now scientists are warning that smog could make global warming worse because of its effects on plants.