ali: that is organ transplant specialist barry friedman. thank you so much for joining us. barry: thank you, ali. laura: last month was the warmest april on record and the 11th straight month of record highs around the world. today nearly a quarter of people globally live in drought conditions. and forecasters anticipate this year's atlantic hurricane season will be the most active on record. all signs that climate change is an accelerating threat to the planet. and young americans are worried about it. in fact, 85% of generation z is very or somewhat concerned about climate change, according to a marist poll from earlier this year. in response, states like california, connecticut, and new jersey are now teaching kids about climate change in the classroom. one of the educators at the forefront of this is lauren madden, professor of elementary science education at the college of new jersey. how do you go about incorporating climate change into a classroom curriculum? >> in new jersey it is simpler than some other places, because we have standards that are required to be taug