Heat from water.

"The global transition to electric vehicles is beginning to unravel," as "The European Commission backed away from what had been the world's most aggressive timeline for phasing out internal combustion-engines, granting manufacturers more time to move off gasoline. A day earlier, Ford Motor Co announced a $19.5 billion in charges tied to the retreat from an electric strategy it vowed to go all in on eight years ago." ET. Europe's retreat may have been forced by Chinese legacy automakers "flooding the world with fossil-fuel vehicles they couldn't sell at home." "Fossil-fuel vehicles have accounted for 76% of Chinese auto exports since 2020, and total annual shipments jumped from 1 million to likely more than 6.5 million this year." Reuters. Reliable electricity supply supports economic growth and constraints are a problem in developing countries. "Rich countries hadn't faced these questions because deindustrialization kept electricity demand flat or falling for the past decades despite economic growth. Now the rise of AI, rapid sales of electric cars and broader electrification of most economic sectors is causing even rich countries to panic." ET. As a result, "Global coal demand reached a record high in 2025 but is expected to decline by 2030 as renewables, nuclear power and abundant natural gas squeeze its dominance in power generation, the International Energy Agency said." Reuters. Increased use of coal is disastrous for the global climate. Hydrogen is the cleanest fuel. Green hydrogen is produced by splitting water molecules using renewable energy. "China accounts for "over half of the roughly 506,000 metric tonnes of green hydrogen production capacity in operation globally right now. A further 2.86 million tonnes is under construction worldwide, with 45% of the total in China." Blue hydrogen is produced by splitting fossil gas and then "pumping the waste carbon dioxide underground to drive oil out of depleted wells." Gray hydrogen is "the most polluting form, made from unabated fossil gas, coal and refinery products," wrote David Fickling. India's "renewable energy capacity surged past 200 gigawatts (GW). By 2030, it hopes to scale up renewables to 500 GW," wrote Sayantan Bera. The situation is precarious because, "A new study by six Indian scientists finds that over the past three decades, sunshine hours - the time direct sunlight reaches the Earth's surface - have steadily declined across most of India, driven by clouds, aerosols and local weather." This could cost a loss of $245-835 million in lost solar power generation. BBC. Germany is building giant heat pumps to supply heating to 40,000 homes. Two meter-diameter pipes will suck up 10,000 liters of water per second from the River Rhine and then return it once the heat from the water has been harvested. BBC. India is one of the hottest countries in the world. If Germany can harvest heat from its cold rivers, how much more can India harvest from more than 400 rivers (wikipedia) that flow across our land. And generate electricity from that heat. Wouldn't that be better than hydroelectricity from dams across rivers? And a lot cheaper.