instruction:
Given a paragraph, generate a claim that is supported by the given paragraph. 1) The claim must contain information from within the paragraph. 2) A sentence within the paragraph can be used as a claim. 3) The claim should not have contradictions within the paragraph. 4) The claim should be at most one sentence long.
question:
The latest work, which appears in the journal PNAS, Proceedings of the National Academy of Sciences of the United States of America, also suggests that different policy steps might be needed in that case. “My study essentially shows that the methods used and analyses presented in the original research are insufficient to rule out other explanations (for lower IQ),” said Ole Rogeberg, an economist at the Frisch Centre for Economics Research in Oslo, to Reuters. The Dunedin Multi-disciplinary Health and Development Study is an ongoing report produced by New Zealand’s University of Otago, monitoring 1,037 New Zealand children born between April 1972 and March 1973. The study followed them for 40 years. The participants were periodically tested for IQ and other indices including drug taking, and in 2012 clinical psychologist Madeline Meier produced a study saying there was a link between teenage cannabis use and a lower IQ. Researchers in the Meier study compared the IQ trends of people who never smoked cannabis with four groups of those who did: people who smoked, people who scored as dependent in a follow-up survey, those who scored as dependent twice and those who scored as dependent three times. The study found IQ declines increasing “linearly” with cannabis use, Rogeberg wrote in PNAS. The crucial assumption in the Meier study is that cannabis use is the only relevant difference between the groups tested, he said. His use of a simulation model showed that it may be premature to draw a causal inference between marijuana use and falling IQ scores. For one thing, other writing about the Dunedin group on which Meier’s study is based suggest that early cannabis use is more common for people with poor self-control, previous conduct problems, and high scores on risk factors linked to low family socioeconomic status, he wrote. Given these factors, young people from lower status families tended to end up in less intellectually demanding environments, whether by choice or by circumstance, which would increase the difference in IQ levels as they aged. “We know that the researchers have measured the IQ of the participants at various ages in childhood - but we don’t know if the IQ changes were similar for the different cannabis-using groups before their cannabis use,” he told Reuters. “We don’t know how much of the change in IQ we can explain by differences in education, jail time, occupational status, etc and whether this affects the estimates in the paper.”
answer:
Study casts doubt on link between cannabis, teen IQ drop.


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Wisconsin Department of Natural Resources records show that Tyco Fire Products discovered soil and well contamination on the Marinette manufacturer’s fire training property in 2013, the Milwaukee Journal-Sentinel reported. The contamination involves a class of chemicals known as per- and polyfluoroalkyl substances, or PFAS, which are linked to cancer and other health issues. The company was found to have some of the highest known concentrations of the chemicals in groundwater and soil in Wisconsin, according to the records. In November 2017, Tyco, a Johnson Controls International unit, acknowledged that the chemicals had spread beyond its Marinette facility and suspended spraying foam products outdoors. The following month, the company started distributing bottled water to residents whose private wells may be affected by the contamination. Tyco tested 168 wells and 56 have shown evidence of the chemicals, the company said. State officials said Wisconsin law requires companies to immediately report pollution , but the company defended its actions by saying that little was known about PFAS at the time. “In 2013, there was not the level of awareness and information as there is today associated with PFOS/PFOA,” said Fraser Engerman, a spokesman for Johnson Controls International. But scientists have warned about the health impacts and other companies have phased out production of the chemicals for more than a decade. Tyco has also claimed that the company didn’t know about contamination beyond the property until 2016. “It wasn’t until 2016 that we had data that showed we had concentrations of these compounds at the edge of the property, so we then began the series of tests which led us to where we are today,” the company’s website states. Doug Oitzinger, the city’s former mayor, dismissed Tyco’s explanation. “This isn’t news to them,” he said. “They know that these pollutants have been judged an environmental danger .” Janell and Duane Goldsmith have twice tested their well water and found chemical contamination above the federal health advisory threshold. Duane Goldsmith has been diagnosed with gastrointestinal stromal tumor cancer and Janell Goldsmith had pregnancy-induced high blood pressure, according to a lawsuit filed in December. The couple’s two sons also have had developmental delays, the lawsuit states. “They’ve known about this for how long — and they have been using these chemicals?” Janell Goldsmith said. “You don’t expect it to happen to your family and to your community. So much crosses your mind.” ___ Information from: Milwaukee Journal Sentinel, http://www.jsonline.com
answer:
Records: Tyco knew of contamination 4 years before reporting.


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The animals ferried to safety are eastern lowland gorillas, a species that only lives in Democratic Republic of Congo and is classified as “endangered” on the International Union for the Conservation of Nature’s (IUCN) red list. The four gorillas, which had been rescued from traffickers in various parts of Congo’s rebel-infested east, were flown by helicopter on Tuesday from Goma to the Kasugho Sanctuary in North Kivu province. “If you use vehicles, there is a great risk of losing the animals because they are traumatized. We used aircraft because we really wanted to reduce their stress level,” Benoit Kisuki, Conservation International’s country director, told Reuters. Kisuki said the air transfer was part of a wider project to combat the illegal trade in baby gorillas, which has intensified in recent years with the proliferation of armed groups and constant insecurity in eastern Congo. “The objective is to reintroduce them in their natural environment,” he added. The gorillas are often caught, trafficked and sold for thousands of dollars on the world market as exotic pets. Others are killed and sold locally as “bush meat.”   The research center in Kasugho has developed a two-hectare (4.9 acre) area where scientists can monitor young gorillas as they prepare to be released into the wild. Six other individuals, currently under protection in Rwanda, are due to be flown in on June 10 to “socialize” with the first group and “form a family of 10,” Kisuki said. The gorillas could be a valuable asset for the future economic development of east Congo, after the animals became a major tourist attraction in Uganda and Rwanda, raising several million dollars in revenues. There is no accurate data for eastern lowland gorilla populations. But Congo’s gorillas have weathered years of warfare in the east and more than 150 rangers have been killed trying to protect the area’s five national parks from poachers. A U.N.-backed report last month said gorillas may become near-extinct in Africa’s Greater Congo Basin by the mid-2020s unless action is taken to stop poaching and protect their habitat.
answer:

U.N. helicopters fly baby Congo gorillas to safety.