More corrections are being made to global warming data, by reanalysis of old temperature records. One effect is the practical elimination of the much-discussed warming hiatus since 1998, making new charts look a little different from the ones we are familiar with. The total warmup since the 19th century, however, is barely affected. This does not preclude the possibility that the warming trend in recent years has been held back by unusual amounts of heat being buried at depth in the Pacific Ocean. That phenomenon could yet be followed up by a burst of acceleration in the readings.
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A report on tropospheric warming from Steve Sherwood. Sherwood is a highly respected hands-on climate researcher. His new work dovetails nicely with the work that resulted in the previous story. The upper troposphere has been warming faster than the surface, and the rate of warming has been more or less constant (in the tropical region) since balloon measurements began in 1958.
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How el Nino affects ocean currents and sea levels. With el Nino in play, sea level in the Western Pacific has lately dropped about 8 inches and risen by a similar amount in the East, due to reversals of both water movement and thermal expansion effects. Also, less warm water is now flowing into the Indian Ocean from the Pacific. All this and much more is neatly described in this story from Australia.
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California keeps moving toward higher goals. A whole package of bills has been passed and overall momentum is strong. “As well, the cost would not be high, he said. Solar prices are falling, and California has shown in recent years that clean energy is a job creator. About 40 percent of all of the nation’s venture capital investment in clean energy technology flows through California, Kammen said.” Utilities will still need to make some challenging adjustments.
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Advanced technology for gasoline engines. Laser ignition, while not yet commercialized, is shown to improve fuel efficiency by 27%. Anything that reduces emissions this much would be helpful to the overall transition process.
Carl