Sean O’Leary, senior researcher, Ohio River Valley Institute - hydrogen hubs being planned in Ohio, West Virginia and Pennsylvania. Planet Philadelphia airs on 92.9 FM in NW Philadelphia & gtownradio.com, 4-5:00 PM ET the 1st & 3rd Friday/month.

Alex Bomstein, Executive Director, Clean Air Council - recent report by CNX, a large fracking company operating in Pennsylvania. Planet Philadelphia airs on 92.9 FM in NW Philadelphia & gtownradio.com, 4-5:00 PM ET the 1st & 3rd Friday/month.

Jessyn Farrell, J.D., Seattle’s Sustainability Director, and Rajiv Ravulapati, IMT's Associate Director of Government Engagemen (IMT); Seattle's new building emissions performance standards. Planet Philadelphia airs on 92.9 FM in NW Philadelphia & gtownradio.com, 4-5:00 PM ET the 1st & 3rd Friday/month. www.planetphiladelphia.com.

Nidhi Krishen, Deputy Director for Climate Solutions, Philadelphia Office of Sustainability; Philly’s new Energy Poverty Alleviation Strategy. Planet Philadelphia airs on 92.9 FM in NW Philadelphia & gtownradio.com, 4-5:00 PM ET the 1st & 3rd Friday/month. www.planetphiladelphia.com.

Stephan Crawford, Executive Producer of The Climate Music Project, a project that combines the talents and expertise of world class scientists, composers, musicians, artists, and technology visionaries. Planet Philadelphia airs on 92.9 FM in NW Philadelphia & gtownradio.com, 4-5:00 PM ET the 1st & 3rd Friday/month. www.planetphiladelphia.com.

Julie Be and Anya Rose are the composers and singers of Ants on a Log. Their songs inspire children to face challenges with joy and justice. Planet Philadelphia airs on 92.9 FM in NW Philadelphia & gtownradio.com, 4-5:00 PM ET the 1st & 3rd Friday/month. www.planetphiladelphia.com.

Enrique Gomez, Penn State University; sustainable batteries and some of the work on this topic his research group is doing. Planet Philadelphia airs on 92.9 FM in NW Philadelphia & gtownradio.com, 4-5:00 PM ET the 1st & 3rd Friday/month. www.planetphiladelphia.com.

Dr. Juan Felipe Torres, Australian National University (ANU), advances in desalination processes to provide fresh water and the work in his lab. Planet Philadelphia airs on 92.9 FM in NW Philadelphia & gtownradio.com, 4-5:00 PM ET the 1st & 3rd Friday/month. www.planetphiladelphia.com.

Ali Zaidi, Assistant to the President and National Climate Advisor, talks about an exciting new federal program, the American Climate Corps. Planet Philadelphia airs on 92.9 FM in NW Philadelphia & gtownradio.com, 4-5:00 PM ET the 1st & 3rd Friday/month. www.planetphiladelphia.com.

Curtis Shuck, Founder and Chairman of the Well Done Foundation and Sebastian Ng, Youth Climate Initiative (YCI) talk about the problem of abandoned oil and gas wells. Planet Philadelphia airs on 92.9 FM in NW Philadelphia & gtownradio.com, 4-5:00 PM ET the 1st & 3rd Friday/month. www.planetphiladelphia.com.