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Spain Warns Small Ships of Possible Orca Run-Ins near the Strait of Gibraltar during the Summer

An Aerial view of Gibraltar rock seen from the neighboring Spanish city of La Linea, Oct. 17, 2019. (AP)
An Aerial view of Gibraltar rock seen from the neighboring Spanish city of La Linea, Oct. 17, 2019. (AP)
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Spain Warns Small Ships of Possible Orca Run-Ins near the Strait of Gibraltar during the Summer

An Aerial view of Gibraltar rock seen from the neighboring Spanish city of La Linea, Oct. 17, 2019. (AP)
An Aerial view of Gibraltar rock seen from the neighboring Spanish city of La Linea, Oct. 17, 2019. (AP)

Following the ramming of a small boat by an orca in the Strait of Gibraltar, authorities in Spain issued recommendations Tuesday that small vessels stick to the coastline in that region to avoid often-scary interactions with killer whales during summer months.

In the latest incident, two people aboard a 15-meter (50-foot) boat in Moroccan waters requested help from Spain’s maritime rescue service Sunday after reporting that an orca knocked the craft several times, damaging its rudder and causing a leak. The people were picked up by a passing oil tanker summoned by the rescuers, and their boat later sank.

Spain’s ministries for transport and the environment, along with its merchant marines, issued notices Tuesday urging both sailing boats and small motorboats to beware of orcas between May and August in the area between the Strait of Gibraltar and the Gulf of Cadiz.

The Atlantic Orca Working Group, a team of Spanish and Portuguese marine life researchers who study killer whales near the Iberia Peninsula, says were 197 such known interactions in 2021 and another 207 in 2022.

A pod of orcas even disrupted a sailing race last year, when a boat sailing from the Netherlands to Italy had a 15-minute encounter with the animals, prompting the crew to drop their craft's sails and raise a clatter to fend them off.

There have been no reports of attacks against swimmers. The interactions on boats seem to stop once the vessel becomes immobilized.

The researchers say that the killer whales seem to be targeting boats in a wide arc covering the western coast of the Iberia Peninsula, from the waters near the Strait of Gibraltar to Spain’s northwestern Galicia.

The orcas off the Iberian coast average from five to 6½ meters (16-21 feet) in length, compared to orcas in Antarctica that reach nine meters (29½ feet).

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Climate Change Causing More Change in Rainfall, Fiercer Typhoons, Scientists Say 

People and vehicles wade through the water along a street that was flooded by Typhoon Gaemi in Kaohsiung on July 25, 2024. (AFP)
People and vehicles wade through the water along a street that was flooded by Typhoon Gaemi in Kaohsiung on July 25, 2024. (AFP)
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Climate Change Causing More Change in Rainfall, Fiercer Typhoons, Scientists Say 

People and vehicles wade through the water along a street that was flooded by Typhoon Gaemi in Kaohsiung on July 25, 2024. (AFP)
People and vehicles wade through the water along a street that was flooded by Typhoon Gaemi in Kaohsiung on July 25, 2024. (AFP)

Climate change is driving changes in rainfall patterns across the world, scientists said in a paper published on Friday, which could also be intensifying typhoons and other tropical storms.

Taiwan, the Philippines and then China were lashed by the year's most powerful typhoon this week, with schools, businesses and financial markets shut as wind speeds surged up to 227 kph (141 mph). On China's eastern coast, hundreds of thousands of people were evacuated ahead of landfall on Thursday.

Stronger tropical storms are part of a wider phenomenon of weather extremes driven by higher temperatures, scientists say.

Researchers led by Zhang Wenxia at the China Academy of Sciences studied historical meteorological data and found about 75% of the world's land area had seen a rise in "precipitation variability" or wider swings between wet and dry weather.

Warming temperatures have enhanced the ability of the atmosphere to hold moisture, which is causing wider fluctuations in rainfall, the researchers said in a paper published by the Science journal.

"(Variability) has increased in most places, including Australia, which means rainier rain periods and drier dry periods," said Steven Sherwood, a scientist at the Climate Change Research Center at the University of New South Wales, who was not involved in the study.

"This is going to increase as global warming continues, enhancing the chances of droughts and/or floods."

FEWER, BUT MORE INTENSE, STORMS

Scientists believe that climate change is also reshaping the behavior of tropical storms, including typhoons, making them less frequent but more powerful.

"I believe higher water vapor in the atmosphere is the ultimate cause of all of these tendencies toward more extreme hydrologic phenomena," Sherwood told Reuters.

Typhoon Gaemi, which first made landfall in Taiwan on Wednesday, was the strongest to hit the island in eight years.

While it is difficult to attribute individual weather events to climate change, models predict that global warming makes typhoons stronger, said Sachie Kanada, a researcher at Japan's Nagoya University.

"In general, warmer sea surface temperature is a favorable condition for tropical cyclone development," she said.

In its "blue paper" on climate change published this month, China said the number of typhoons in the Northwest Pacific and South China Sea had declined significantly since the 1990s, but they were getting stronger.

Taiwan also said in its climate change report published in May that climate change was likely to reduce the overall number of typhoons in the region while making each one more intense.

The decrease in the number of typhoons is due to the uneven pattern of ocean warming, with temperatures rising faster in the western Pacific than the east, said Feng Xiangbo, a tropical cyclone research scientist at the University of Reading.

Water vapor capacity in the lower atmosphere is expected to rise by 7% for each 1 degree Celsius increase in temperatures, with tropical cyclone rainfall in the United States surging by as much as 40% for each single degree rise, he said.