Ingesting less than three sugar cubes worth of plastic is enough to kill a puffin, a new study has found. Scientists measured how much different kinds of plastic seabirds, sea turtles and marine mammals have to ingest to have a 90% risk of it killing them, in the study published in the Proceedings of the National Academy of Sciences. The scientists, working for Ocean Conservancy, found that a relatively small amount of plastic was enough to kill a variety of marine animals.
Carla leads a fight in flood-damaged Valencia where climate change and tourism threaten turtles along Spain's coastline. Carla grew up witnessing her father's fight to protect Valencia's fragile beach ecosystems. Now, as climate change warms the Mediterranean, sea turtles driven by rising sea temperatures have begun arriving to lay their eggs on her city's shoreline. But the beaches they rely on are under threat.