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Renewable energy: climate crisis “could provoke an increase in wind speed” | Wednesday



According to the study, the global climate crisis could lead to an increase in the generation of electricity from renewable sources by accelerating wind speeds for the growing number of wind farms in the world.

Scientists have discovered that the changing patterns of ocean circulation in the world may have caused a rapid increase in wind speed over the past 10 years.

An international research team has analyzed data from 9,000 international weather stations since the late 1970s and found that wind speeds increased unexpectedly after three decades of deceleration.

Dr Zhenzhong Zeng, a professor at Princeton University and lead author of the report, said the research team was surprised at the results after embarking on a study of slowing global wind speeds.

Higher than expected wind speeds can help increase the amount of renewable electricity generated by wind farms by more than a third to 3.3 million kWh (kWh) by 2024.

Zeng said that unexpected acceleration probably played a greater role in improving the efficiency of US wind farms than technological innovation.

A research paper published in the peer-reviewed journal Nature Climate Change suggests that higher global speeds can last at least another decade, which will be a major incentive for owners of wind farms.

Dr. Adrian Chappell, a professor at Cardiff University and co-author of the report, said the rapid increase in global wind speed portends a good increase in the use of renewable energy, which will be key to keeping global heating below 2C.

The results indicate a significant change in the tendency to decrease wind speed over the past three decades, known as the global calm of the earth, which threatens to halve the potential of world wind energy by the end of the century.

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Previous studies have shown that the increase in “roughness” on the Earth’s surface, caused by new buildings and urbanization, acts as a buffer, slowing down the wind speed to 2.3% every ten years from the end of the 1970s. But recent studies have shown that large-scale models of ocean and atmosphere circulation can again accelerate wind speed.

The study showed that the main driving forces of accelerating global wind speeds are the Pacific fluctuations of decades, fluctuations of the North Atlantic and the index of the tropical North Atlantic.

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Zeng said that the impact of global warming on world wind speeds remains largely uncertain, as rising temperatures will have diverse effects that are not fully understood.

“We believe that our academic achievement [the] understanding how climate change affects the wind, and we encourage more scientists to focus on this important climate variable, ”he said. “Wind studies can also shed light on the dynamic mechanisms of climate change.”


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