Yesterday was Earth Day and that's a good chance to look at some of the climate statistics since the first Earth Day in 1970.

In Alaska, the average annual temperature for the state has warmed 3.8F degrees since 1970. Part of that change is driven by the record warmth of the past three years. The Arctic continues to warm at a faster rate than the rest of the planet.

In the Lower 48, the average annual temperature has warmed 2.3F degrees since 1970.

Looking at 2017 so far, using data as of April 19, 2017, warmer than normal temperatures still dominate across the globe. Alaska is bucking the warming trend for the start of the year with near normal temperatures, even a few areas with colder than average.