On average, 2014 was Earth's hottest year ever -- in the ocean and on land. That's according to the National Oceanic and Atmospheric Administration, which has been gathering data from more than 400 scientists around the world on climate trends. We were joined in studio by John Radzilowicz, adviser to the Science Communication Group at CMU, for a look at what's causing this trend and what can be done to slow it down or reverse it.
More Essential Pittsburgh segments can be heard here.
Also in the program, La Roche College Media, Communications, and Technology Chair Jeff Ritter tells us how PA legislators are using advertisements to make their case for the budget and we hear about a new public performance project called "Street Stages."
