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Episode 407
The latest UN climate report is out and we’ve blown past 1.5 degrees of warming. We’re now in “overshoot” - an acknowledgement that global temperatures will rise beyond 1.5 degrees, but can theoretically be brought back down again through cooling efforts.
But with the world on track fo r2.8 and even as much as 4.5 degrees of warming by 2100, is the c...
Episode 406
The glymphatic system is the brain’s waste disposal system - responsible for clearing out harmful toxins that build up during the day.
Now a new mouse study has connected reduced glyphatic flow to Alzheimer’s disease. And because this glymphatic system cleans the brain during sleep, it’s thought poor sleep may contribute to this reduction in brain fu...
Episode 405
The Atlantic Meridional Overturning Circulation (AMOC) is a major system of ocean currents that plays a vital role in Earth’s climate. If it collapses, the consequences could be catastrophic. We could see ice-age level winters in Europe, coupled with scalding hot summers - and impacts on food production around the world. The trouble is it’s already weakenin...
Episode 404
Jonathan the tortoise was born in the year 1832, on a beach in the Seychelles. 194 years later and Jonathan is still alive, celebrating his birthday. How exactly has he managed to survive for so long?
Jonathan is a giant tortoise and the world’s oldest known land animal. His genome has now been sequenced, revealing intriguing hints about longevity. A...