The headline – “Wind farms are warming the earth, researchers say” –
seemed like a gotcha headline, and after further review, it turned out to be true.
Sure, the study does say that the ground near wind turbines is warmer, but it didn’t mean that it is actually contributing to global warming as we’re lead to believe in some articles.
“Researchers used satellite data from 2003 to 2011 to examine surface temperatures across as wide swath of west Texas, which has built four of the world’s largest wind farms. The data showed a direct correlation between night-time temperatures increases of 0.72 degrees C (1.3 degrees F) and the placement of the farms.”
One thing the story mentions is the number of turbines in the Texas region studies has risen from 111 in 2003 to 2,358 last year. That’s a good thing.
“Very likely, the wind turbines do not create a net warming of the air and instead only re-distribute the air’s heat near the surface, which is fundamentally different from the large-scale warming effect caused by increasing atmospheric concentrations of greenhouse gases.”
And one researcher – in addition to shooting down wind turbines’ negative effect on climate change – found some upside in the findings.
“This is a small, local impact that should not be confused with what is typically thought of as “climate change.” One possible outcome of this local effect is that you would be able to extend growing seasons for crops grown near wind turbines. There might be additional impacts that haven’t yet been anticipated, but it is clear that these impacts bear no resemblance in scope, magnitude or severity to global climate disruption.”
The initial news articles, which were picked up nearly everywhere, would’ve been better served using the “land-surface temperature” term used in the
headline for the actual study rather than the generic “Earth” term that caused confusion.
Let’s hope this blip in wind turbine PR turns out to be minor – and that the nearly 20-fold increase can be maintained. Wind turbines might not be THE answer to climate change, but they’re AN answer.