The forgotten story of the hole in the ozone layer - and how the world came together to fix it. The scientists and politicians who persuaded Ronald Reagan and Margaret Thatcher to take action reveal how the planetary problem was solved. Watch now.
Almost a century ago, paleontologists found the first tantalizing hints of a monster even bigger than Tyrannosaurus rex, perhaps the largest predator ever to roam the Earth: spectacular fossil bones from a dinosaur dubbed Spinosaurus. But the fossils were completely destroyed during a World War II Allied bombing raid, leaving only drawings, questions, and a mystery: What was Spinosaurus?
By 2050 there will be more plastic than fish in the oceans. PBS NewsHour takes a closer look at this now ubiquitous material, how it’s impacting the world and ways we can break our plastic addiction.
How do you study an animal you can't even get close to? Camera traps and drones are revolutionizing wildlife biology by recording the secret lives of animals—from whales and tigers to elusive giant armadillos—all without disturbing them.