As average temperatures have increased across Montana by 2-3 degrees Fahrenheit over the last century, flowers have responded to this change by blooming earlier than they would normally.
As is the case with migratory birds (like the American robin), changes in the timing of these biological events is an easy way for us to track the effects of climate change in our backyards.
To get started on this backyard experiment, follow the directions here.
Or just click on the links at right to learn more about the ways in which warmer temperatures are affecting the plants and animals you care about most.
Photo at top of page: iStock.