By Abigail Dillen
This column originally appeared in USA Today.
The world's leading panel of climate experts sounded the alarm this week that we are running out of time to get rising temperatures under control. Its latest report calls for "rapid, far-reaching and unprecedented" steps to avoid the worst impacts of climate change, from worsening wildfires and extreme drought to rising sea levels and more powerful storms. It also reminds us what is at stake if we fail to act: our health, our food and water security, our environment and our economy.