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The less discussed climate impacts



WASHINGTON (AP) – In the vicinity of the Antarctic, whales sing in deeper tones to break the murmur of melting icebergs. In California, a major college football rivalry game was postponed to Saturday due to smoky air from forest fires. Alaskan shellfish were hit by an outbreak of hot water bacteria.

That's global warming in action. Climate change is more than heat waves, hurricanes, floods, droughts, sea-level rise, ice melt and ever-increasing temperatures.

Sometimes global warming – directly or indirectly – has something in it that's a bit odd, such as changing the pitch of five baleen populations in the Southern Ocean. This can be annoying, such as when the big game between California and Stanford has to be rescheduled or plants are blooming too early in the spring.

Often the impact of climate change is ominous, as the oceans become acidic and erode shellfish and coral reefs that have already been bleached by warmer waters.

Or even inappropriate and dangerous, like the outbreak of Vibrio bacteria in Alaska or once tropical mosquitoes arriving in Canada.

It may be somewhat unexpected, such as a study linking a warmer climate to an increase in winter crimes in the United States. Northeastern University criminologist James Fox says it really makes sense because more people outside of the country have more options for a bad game.

And climate change has changed global politics. Numerous studies have shown that this was a factor in the record drought in Syria ̵

1; one of the causes of the country's civil war, which triggered a massive refugee crisis.

The military calls this a multiplier effect. Problems connect, pile up and worsen. Climate change is doing so even on national security issues, said Richard Alley, a climatologist at Pennsylvania State University.

"Climate change has not caused the Syrian civil war," but in a place that is unfortunate, a drought comes, farmers move into a crowded city, and problems multiply and lead to war, Alley said. "It was the straw that broke the camel's back."

The conflict over the effects of climate change is not limited to Syria, says University of Oklahoma meteorologist Professor Renee McPherson. It also applies to thousands of Nigerians "killed in conflicts between farmers and ranchers competing to reduce water supplies and fertile soil," she said.

"It's like a domino effect," said the university's geographer from Hawaii, Camilo Mora. "They take three steps back and realize that climate change was part of the equations."

Mora searched the scientific literature to see how many times global warming affected some diseases of society and gave 467 examples. For example, Australian subways for electrical transmission were shorted due to heat, and aircraft were grounded in Arizona because hotter air is thinner, making take-offs and landings more difficult.

"The laundry list of falls is simply mind-blowing," said Mora.

A changing planet has mingled with the timing of nature.

"There are hundreds of changes in the flowering of plants, the leafing out of trees Climate change, said Boston University biologist Richard Primack, and when that happens, sometimes "inconsistencies" arise.

In Europe, for example, oak trees now flower earlier, caterpillars hatch and feed earlier However, birds migrate to daylight while insects are exposed to temperature, said climate scientist Jennifer Francis from the Woods Hole Research Center, so the birds dive late for dinner and may have little to eat.

And for maple trees, " Whip "between cold and hot weather" mess up the sap flow, "Francis said it may hinder the growth of maple by human activity, including dry conditions, and more nitrogen, which may affect syrup production.

Global warming has changed how some male whales attract women.

Jean-Yves Royer A geophysicist at the National Science Center in France and colleagues compared male Bartenwal songs from 2002 to 2015 and found that the frequency of sound has changed in areas where icebergs are melting due to warmer water and air. When icebergs melt, that's the loudest sound, he said.

So the whales deepen their song, Royer said, to penetrate through the sound of melting ice.

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Read more climate related contributions from The Associated Press at https://www.apnews.com/Climate[19659002##___[19659002followingSethBorensteinonTwitter@borenbears

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The Department of Health and Science Associated Press is supported by Howard Hughes Department of Science Education of the Medical Institute. The content is the sole responsibility of the AP.


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