Spurred on by the war in Ukraine, we’re seeing a worldwide shift to green energy, with the global demand of fossil fuels now expected to peak in 15 years - a dose of optimism ahead of COP27. <a href="https://www.newscientist.com/article/2345094-climate-warnings-highlight-the-urgent-need-for-action-ahead-of-cop27/" rel="noopener noreferrer" target="_blank">The climate conference kicks off in Egypt on November 6</a>, and the team brings a round-up of what we can expect. Maddie and Rowan also discuss their recent visit to the London Literature Festival, where they saw <a href="https://www.newscientist.com/article/2342816-the-climate-book-review-an-essential-guide-to-a-better-world/" rel="noopener noreferrer" target="_blank">Greta Thunberg speak</a>.<a href="https://www.newscientist.com/article/2344445-quakes-on-mars-reveal-there-may-be-magma-beneath-the-surface/" rel="noopener noreferrer" target="_blank">‘Marsquakes’ studied by NASA’s InSight lander suggest Mars may still be volcanically active</a> - and it <a href="https://www.newscientist.com/article/2344444-meteorite-impacts-show-marss-crust-is-denser-than-we-thought/" rel="noopener noreferrer" target="_blank">may have a subsurface water table similar to the one on Earth</a>. The team says this is exciting news for the prospect of life existing on the Red Planet.“A victory not only for the region, but for humanity and life itself.” Brazil’s President&nbsp; Jair Bolsonaro has been unseated by Luiz Inácio Lula da Silva. The team explains how Bolsonaro has presided over climate catastrophe, and <a href="https://www.newscientist.com/article/2344713-brazil-election-lula-win-hailed-as-victory-for-the-amazon/" rel="noopener noreferrer" target="_blank">why this news has sparked celebration - and relief - from environmentalists</a>.Genetically modified mosquitoes have been released in a city in Brazil. The team explains how UK-based biotechnology firm Oxitec have done this in an effort to find ways to eliminate mosquitoes. The insects transmit deadly diseases like malaria, which kills more than 600,000 people a year.And we bring you a controversial ‘Lifeform of the Week’ - everyone’s most hated amphibian, the cane toad. Quite disturbingly, the team explains how new x-ray video footage shows that cane toads lick their own hearts when they swallow prey. Gross.&nbsp;On the pod are Rowan Hooper, Madeleine Cuff, Sam Wong, Chris Simms and Alexandra Thompson. 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>.Events and discount codes:Early bird offer: <a href="http://newscientist.com/earlybird22" rel="noopener noreferrer" target="_blank">newscientist.com/earlybird22</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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#146 Accelerated end to fossil fuel; double discovery on Mars

New Scientist Weekly