been rejected by governments over time. what s new now? that gives you confidence that people will accept this? so i believe that the idea of only using iron was wrong. volcanic ash contains all the nutrients that we need. a contains nitrates, phosphates , silly cates and iron. and so we plan to literally use volcanic dust as our artificial whale poon. but to recover insufficient numbers. whales will need time. and we are out of time. but sir david thinks we could buy precious years needed for ocean recovery. by making clouds. big puffy white ones to reflect maximum sunlight away from the top of the world. so his team is designing hydrofoil that could sail northern seas unmanned and powered only by the motion of the ocean. he hopes a fleet of these spraying a fine
This week's Science Sunday comes from our friends at the Buena Vista Museum of Natural History and Science. BVM's Jessica Herrold shows us how to make a rain cloud inside a jar.