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Our best climate models for helping limit global warming to 1.5oC may have wildly overestimated our chances. To reach this goal, models are relying heavily on geological carbon storage, a technology that removes carbon from the atmosphere and places it underground. But it may not be nearly as effective as models have suggested, making the task of decarbonising much more difficult. Do we need to rethink our approach?

Intel has announced it has constructed the world’s biggest computer modelled on the human brain and nervous system. This neuromorphic computer, called Hala Point, may only be the size of a microwave oven, but its innovative technology could someday run artificial intelligence that’s smarter and more energy efficient.

After a blast of sound from a keyboard shot through her whole body, experimental musician Lola De La Mata was hit with debilitating tinnitus. It was so profound it left her with vertigo, difficulty walking, speech problems and unable to make music. Years later, she is now putting a spotlight on the condition with a new album, Oceans on Azimuth. Hear her story and music from the album in a special feature. Plus, read Clare Wilson’s recent feature about the future of tinnitus and hearing loss.

Do birds dream? They just might. Birds’ vocal cords move in their sleep, as if they’re singing, but don’t actually make a sound. Now researchers have managed to use these vocal movements to synthesise their songs and hear them aloud – with surprising results. Does this prove that birds dream?

Plus: The biggest stellar mass black hole ever found is very close by; fossil hunters uncover the jawbone of an extinct reptile that may have been the biggest ever to swim the oceans; how skin wounds can cause gut problems.

Hosts Timothy Revell and Christie Taylor discuss with guests Madeleine Cuff, Matt Sparkes and Karmela Padavic-Callaghan. To read more about these stories, visit newscientist.com.

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