Forecasting Our Future: Here's how fluctuating weather affects ski areas

Snow is a vital element of the ecosystem and economy, but average winter temperatures are creeping up due to warming from heat-trapping pollutants, scientists say. That means North American ski areas could see a 50% decline in days that are favorable enough to make snow by the middle of the century, according to a new study from the University of New Hampshire. Watch the video above for a closer look from Maine, New Hampshire and Vermont.