is already happening. in the satellite images taken between 1980 and present, tropical cyclones have moved poleward. the key risk is changing where they occur, so we have little confidence in whether the total number of hurricanes every year on the planet will increase or decrease, but what we re finding here is that where they occur will change. so, some areas, in particular higher latitudes, including new york and boston and even western europe, will experience relatively more hurricanes than the deep tropics. it s worth saying that we believe that hurricanes haven t existed over this wider range of latitudes at any point over the last 3 million years, which is certainly beyond human civilisation, so regions that haven t experienced hurricanes at all and haven t developed to protect themselves from hurricanes will begin to experience these damages. conservationists at chester zoo have helped experts in mexico reintroduce a species of fish
it s a conservation success story that it s hoped could be repeated for other threatened habitats and species, including one that lives in just one lake in the north of mexico. the achoques, a close relative of the axolotl, was saved from extinction partly by a captive breeding program led by local nuns. open the mouth. and now, with the community helping to clean up the lake, here in patzcuaro, these captive reared animals could be brought back to the wild. the success of the little tequila fish is a much needed sign of hope for one of the many small and perhaps underappreciated creatures that are facing extension. amid a biodiversity crisis, it s a sign that, with people s help, nature can make a comeback. victoria gill, bbc news. don t forget you can get in touch with me and some of the team on twitter, i m @benmboulos. there s plenty more on the stories we have covered and more on the