By — John Yang John Yang By — Veronica Vela Veronica Vela By — Harry Zahn Harry Zahn Leave your feedback Share Copy URL https://www.pbs.org/newshour/show/how-extreme-heat-is-contributing-to-a-nationwide-blood-shortage Email Facebook Twitter LinkedIn Pinterest Tumblr Share on Facebook Share on Twitter Audio The American Red Cross says there’s an emergency shortage of blood for transfusions. In July, the national supply dropped by more than 25 percent. The Red Cross says the only solution is more blood donors. Jessa Merrill, director of biomedical communications at the Red Cross, joins John Yang to discuss. Listen to this Segment Watch Watch the Full Episode PBS NewsHour from Aug 24, 2024 By — John Yang John Yang John Yang is the anchor of PBS News Weekend and a correspondent for the PBS News Hour. He covered the first year of the Trump administration and is currently reporting on major national issues from Washington, DC, and across the country. @johnyangtv By — Veronica Vela Veronica Vela By — Harry Zahn Harry Zahn