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Summers in Northern Hemisphere may last half the year by 2100: study – CTV News

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TORONTO —
A new study has found that summers in the Northern Hemisphere may last nearly six months by 2100, if efforts to combat climate change are not taken.

Researchers behind the study out of China warn that a longer summer season will likely have “far-reaching impacts” on agriculture, human health, and the environment.

The study, published Monday in peer-reviewed scientific journal Geophysical Research Letters, reports that global warming is driving “dramatic and irregular” changes to the length and start dates of seasons, which may become more extreme in the future without efforts to mitigate climate change.

“Summers are getting longer and hotter while winters shorter and warmer due to global warming,” Yuping Guan, lead author and physical oceanographer at the Chinese Academy of Sciences, said in a press release.

According to the study, the researchers used historical daily climate data from 1952 to 2011 to measure changes in the four seasons’ length and onset in the Northern Hemisphere.

The study defines the start of summer as the onset of temperatures in the hottest 25 per cent during that time period. Winter, as defined in the report, is the onset of temperatures in the coldest 25 per cent.

The team then used climate change modelling data to predict how seasons will shift in the future.

The study found that summer extended from 78 to 95 days on average between 1952 to 2011, while winter shrank from 76 to 73 days. According to the study, spring and fall also shrank, from 124 to 115 days and 87 to 82 days, respectively.

The study also reported that spring and summer began earlier, while fall and winter started later. The Mediterranean region and the Tibetan Plateau experienced the greatest changes to their seasonal cycles, according to the report.

If these trends continue without any effort to lessen the effects of climate change, the authors predict that winter will last less than two months, and spring as well as fall will contract further by 2100.

ENVIRONMENTAL IMPACTS AND HEALTH RISKS

Studies have already shown that changes in the length of the seasons can cause significant environmental and health risks, including birds shifting their migration patterns and plants flowering at different times.

According to the study, these “phenological changes can create mismatches” between animals and their food sources, disrupting ecological communities. Researchers noted that seasonal changes can create issues for agriculture when a false spring or late snowstorm damages budding plants.

With longer growing seasons, the study reported that humans will breathe in more allergy-causing pollen, while disease-carrying mosquitoes will be able to travel and survive farther north.

Congwen Zhu, a monsoon researcher at the Chinese Academy of Meteorological Sciences, said this shift in seasons may also result in more severe weather events.

Zhu, who was not involved in the study, said in the release that a hotter, longer summer will cause more “frequent and intensified high-temperature events” including heatwaves and wildfires.

Zhu added that warmer, shorter winters may also cause weather instability that leads to cold surges and major winter storms, much like February’s snowstorm in Texas.

Scott Sheridan, a climate scientist at Kent State University who was not a part of the study, said these extreme weather events are a “good overarching starting point” in understanding the implications of climate change on the seasons.

While Sheridan acknowledged that it is difficult to conceptualize a two or five degree yearly increase in temperature, he said “realizing that these changes will force potentially dramatic shifts in seasons probably has a much greater impact on how you perceive what climate change is doing.”

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The body of a Ugandan Olympic athlete who was set on fire by her partner is received by family

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NAIROBI, Kenya (AP) — The body of Ugandan Olympic athlete Rebecca Cheptegei — who died after being set on fire by her partner in Kenya — was received Friday by family and anti-femicide crusaders, ahead of her burial a day later.

Cheptegei’s family met with dozens of activists Friday who had marched to the Moi Teaching and Referral Hospital’s morgue in the western city of Eldoret while chanting anti-femicide slogans.

She is the fourth female athlete to have been killed by her partner in Kenya in yet another case of gender-based violence in recent years.

Viola Cheptoo, the founder of Tirop Angels – an organization that was formed in honor of athlete Agnes Tirop, who was stabbed to death in 2021, said stakeholders need to ensure this is the last death of an athlete due to gender-based violence.

“We are here to say that enough is enough, we are tired of burying our sisters due to GBV,” she said.

It was a somber mood at the morgue as athletes and family members viewed Cheptegei’s body which sustained 80% of burns after she was doused with gasoline by her partner Dickson Ndiema. Ndiema sustained 30% burns on his body and later succumbed.

Ndiema and Cheptegei were said to have quarreled over a piece of land that the athlete bought in Kenya, according to a report filed by the local chief.

Cheptegei competed in the women’s marathon at the Paris Olympics less than a month before the attack. She finished in 44th place.

Cheptegei’s father, Joseph, said that the body will make a brief stop at their home in the Endebess area before proceeding to Bukwo in eastern Uganda for a night vigil and burial on Saturday.

“We are in the final part of giving my daughter the last respect,” a visibly distraught Joseph said.

He told reporters last week that Ndiema was stalking and threatening Cheptegei and the family had informed police.

Kenya’s high rates of violence against women have prompted marches by ordinary citizens in towns and cities this year.

Four in 10 women or an estimated 41% of dating or married Kenyan women have experienced physical or sexual violence perpetrated by their current or most recent partner, according to the Kenya Demographic and Health Survey 2022.

The Canadian Press. All rights reserved.

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The ancient jar smashed by a 4-year-old is back on display at an Israeli museum after repair

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TEL AVIV, Israel (AP) — A rare Bronze-Era jar accidentally smashed by a 4-year-old visiting a museum was back on display Wednesday after restoration experts were able to carefully piece the artifact back together.

Last month, a family from northern Israel was visiting the museum when their youngest son tipped over the jar, which smashed into pieces.

Alex Geller, the boy’s father, said his son — the youngest of three — is exceptionally curious, and that the moment he heard the crash, “please let that not be my child” was the first thought that raced through his head.

The jar has been on display at the Hecht Museum in Haifa for 35 years. It was one of the only containers of its size and from that period still complete when it was discovered.

The Bronze Age jar is one of many artifacts exhibited out in the open, part of the Hecht Museum’s vision of letting visitors explore history without glass barriers, said Inbal Rivlin, the director of the museum, which is associated with Haifa University in northern Israel.

It was likely used to hold wine or oil, and dates back to between 2200 and 1500 B.C.

Rivlin and the museum decided to turn the moment, which captured international attention, into a teaching moment, inviting the Geller family back for a special visit and hands-on activity to illustrate the restoration process.

Rivlin added that the incident provided a welcome distraction from the ongoing war in Gaza. “Well, he’s just a kid. So I think that somehow it touches the heart of the people in Israel and around the world,“ said Rivlin.

Roee Shafir, a restoration expert at the museum, said the repairs would be fairly simple, as the pieces were from a single, complete jar. Archaeologists often face the more daunting task of sifting through piles of shards from multiple objects and trying to piece them together.

Experts used 3D technology, hi-resolution videos, and special glue to painstakingly reconstruct the large jar.

Less than two weeks after it broke, the jar went back on display at the museum. The gluing process left small hairline cracks, and a few pieces are missing, but the jar’s impressive size remains.

The only noticeable difference in the exhibit was a new sign reading “please don’t touch.”

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B.C. sets up a panel on bear deaths, will review conservation officer training

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VICTORIA – The British Columbia government is partnering with a bear welfare group to reduce the number of bears being euthanized in the province.

Nicholas Scapillati, executive director of Grizzly Bear Foundation, said Monday that it comes after months-long discussions with the province on how to protect bears, with the goal to give the animals a “better and second chance at life in the wild.”

Scapillati said what’s exciting about the project is that the government is open to working with outside experts and the public.

“So, they’ll be working through Indigenous knowledge and scientific understanding, bringing in the latest techniques and training expertise from leading experts,” he said in an interview.

B.C. government data show conservation officers destroyed 603 black bears and 23 grizzly bears in 2023, while 154 black bears were killed by officers in the first six months of this year.

Scapillati said the group will publish a report with recommendations by next spring, while an independent oversight committee will be set up to review all bear encounters with conservation officers to provide advice to the government.

Environment Minister George Heyman said in a statement that they are looking for new ways to ensure conservation officers “have the trust of the communities they serve,” and the panel will make recommendations to enhance officer training and improve policies.

Lesley Fox, with the wildlife protection group The Fur-Bearers, said they’ve been calling for such a committee for decades.

“This move demonstrates the government is listening,” said Fox. “I suspect, because of the impending election, their listening skills are potentially a little sharper than they normally are.”

Fox said the partnership came from “a place of long frustration” as provincial conservation officers kill more than 500 black bears every year on average, and the public is “no longer tolerating this kind of approach.”

“I think that the conservation officer service and the B.C. government are aware they need to change, and certainly the public has been asking for it,” said Fox.

Fox said there’s a lot of optimism about the new partnership, but, as with any government, there will likely be a lot of red tape to get through.

“I think speed is going to be important, whether or not the committee has the ability to make change and make change relatively quickly without having to study an issue to death, ” said Fox.

This report by The Canadian Press was first published Sept. 9, 2024.

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