The world, the universe and us First climate tipping point triggered; Man controls another person's body by brain implant; health worries over sumo wrestlers
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Oct 17, 2025 Madeleine Cuff, an environment reporter for New Scientist, shares alarming insights on coral dieback as the first major climate tipping point is reached, highlighting its catastrophic global effects. Carissa Wong, a science journalist, discusses groundbreaking brain implant technology that enabled a paralyzed man to control another's hand, opening discussions on rehabilitation and ethical concerns. Sumo expert John Gunning reflects on the unique challenges and health risks of sumo wrestling, emphasizing the sport's impact on longevity and proposed safety measures.
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Warm-Water Coral Tipping Point
- Scientists have declared a global tipping point: widespread warm-water coral dieback is now irreversible.
- This shift threatens up to a third of marine biodiversity and services worth about $10 trillion globally.
Temperature Thresholds Seal Coral Fate
- Coral thermal limits coincide with global warming between 1.2°C and 1.5°C above pre-industrial levels.
- 2024 pushed average temperatures to about 1.5°C, making widespread coral die-off virtually certain.
Protect Corals By Tackling Local Stressors
- Reduce local pressures like overfishing and pollution to protect remaining corals.
- Prioritize global emissions cuts to return temperatures below coral thermal limits if recovery is to be possible.