The southwestern US is currently in the midst of a <a href="https://www.newscientist.com/article-topic/megadrought/" rel="noopener noreferrer" target="_blank">megadrought</a> - the worst in 1200 years. And it has put <a href="https://www.newscientist.com/article/mg25634141-100-why-the-colorado-river-is-drying-up-and-what-we-can-do-about-it/" rel="noopener noreferrer" target="_blank">the Colorado River in crisis</a>, an essential source of water for more than 40 million people. Can it be saved? Chelsea Whyte investigates.The team unveils <a href="https://www.newscientist.com/article/2347426-ronnametres-and-quettagrams-have-joined-the-ranks-of-si-units/" rel="noopener noreferrer" target="_blank">the fun new name</a>s that have been chosen to define incomprehensibly massive and incredibly tiny numbers. These prefixes describe measurements that have more than 27 zeroes, created as part of the International System of Units.Like mac and cheese but hate the faff of making a roux? You’re in luck. Sam Wong shares <a href="https://www.newscientist.com/article/mg25634143-000-how-to-hack-your-macaroni-cheese/" rel="noopener noreferrer" target="_blank">a science-based one-pot mac hack</a>, that’ll save you time and up the flavour too.Was <a href="https://www.newscientist.com/article/2348153-cop27-absence-of-clear-vision-stalled-progress-at-climate-conference/" rel="noopener noreferrer" target="_blank">COP27 in Egypt</a> a success or a flop? Madeleine Cuff describes it as a mixed bag. After returning from the climate summit in Sharm El-Sheik, she reports on <a href="https://www.newscientist.com/article/2347834-countries-agree-to-create-climate-damage-fund-in-historic-cop27-deal/" rel="noopener noreferrer" target="_blank">the progress that was made</a>, and <a href="https://www.newscientist.com/article/2348073-what-are-climate-summits-actually-for-and-how-can-we-make-them-work/" rel="noopener noreferrer" target="_blank">the vital issues</a> that must be addressed over the next 12 months.Have you ever wondered how to move an elephant? Well, Ugandan wildlife vet Gladys Kalema-Zikusoka has done it, andit’s a struggle. She was given the task early on in her career, working at the Uganda Wildlife Education Centre, and she shares her experience.On the pod are Penny Sarchet, Chelsea Whyte, Alex Wilkins, Madeleine Cuff, Graham Lawton and Sam Wong. To read about these subjects and much more, you can subscribe to New Scientist magazine at <a href="https://www.newscientist.com/" rel="noopener noreferrer" target="_blank">newscientist.com</a>. For New Scientist’s in depth series on the US megadrought, visit <a href="http://newscientist.com/megadrought" rel="noopener noreferrer" target="_blank">newscientist.com/megadrought</a>.Events and discount codes:Black Friday deal: <a href="http://www.newscientist.com/blackfriday" rel="noopener noreferrer" target="_blank">www.newscientist.com/blackfriday</a>New Scientist Business: <a href="http://newscientist.com/b2bsurvey" rel="noopener noreferrer" target="_blank">newscientist.com/b2bsurvey</a><hr> Hosted on Acast. See <a style='color:grey;' target='_blank' rel='noopener noreferrer' href='https://acast.com/privacy'>acast.com/privacy</a> for more information.

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#150 Megadrought in the US; how to move an elephant

New Scientist Weekly