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In a sea of young people fighting for their future, there's a 13-year-old girl named Haven Coleman.In many ways, she's just like any other teenager, but she's also the co-founder of a national organization called U.S. Youth Climate Strike. She spends every Friday striking outside the Colorado State Capitol.“So the story... involves sloths," Haven says.Inspired several years ago to save the sloths she deeply loves, Haven decided to become a climate activist."I was trying to do everything and anything, and I'm still doing that to stop climate change because this is something that's so like... big, so terrifying, and that's gonna be following me and my generation," she explains. "And it has been for our whole lives."Growing up during a time when climate change is a common topic, Haven wasn't shocked when she found out carbon dioxide has now reached a level in the atmosphere that hasn't been seen for three million years. On May 11, sensors at the Mauna Loa Observatory in Hawaii measured concentrations of the greenhouse gas to be at 415 parts per million. That means for every 1 million molecules of gas in the atmosphere, 415 were carbon dioxide. Compare that to 315 ppm 60 years ago, and 280 at the start of the industrial revolution. Without human interference, carbon in fossil fuels would leak slowly into the atmosphere through volcanic activity over millions of years. That's how the Earth has had these levels before. But a process that is normally very slow has been accelerated by the burning of coal, oil, and natural gas."Those greenhouse gases, that carbon pollution that we're putting into the atmosphere, much of that is going to stay there for a very long period of time and affect our climate for decades to come," Tony Dutzik said.Tony Dutzik with Environment America says what's most concerning about this data, is that human beings have never lived in a climate as hot as the one that existed three million years ago. Sea levels were approximately 50 feet higher than where they are today.According to Scripps Institution of Oceanography, vegetation records from that era called Pliocene show forests growing in the Canadian arctic, and savannas covering what is now known as the north African desert. The impacts of a changing climate are already evident in the United States."We're beginning to see supercharged storms -- storms that are gaining energy from our warmer oceans -- that are dumping immense amounts of rainfall. Storms like Hurricane Harvey, and Hurricane Florence in just the last few years," Dutzik says. "Sea level is rising at about a tenth of an inch per year, and that rate of rise is accelerating, and so cities like Boston and Miami increasingly have to deal with coastal flooding. And in places in the west, we're seeing larger more intense wildfires that burn hotter and are harder to control."As catastrophic as these events may seem, Dutzik says change is possible if everyone plays a part."Every day we have the opportunity when we're making energy efficiency upgrades to our homes, when we're purchasing our next car, when we're choosing where to live -- whether we live some place that's close to the places that we need to be or far away," Dutzik says.However, Dutzik notes a majority of change necessary to alter the course the earth's current projections will take a lot of political power. Power that young people like Haven are strongly pushing for."I hope that we fix this," Haven says. "We have 11 years...because 11 years is the only time we've got to fix the worst effects of climate change."Many U.S. students are pushing for 100 percent renewable energy by 2030 and want to stop any new construction on fossil fuel infrastructure, including pipelines, coal plants, and fracking facilities. *******************If you'd like to contact the journalist of this story, email elizabeth.ruiz@scripps.com 3880

Is anybody home? Astronomers have pinpointed two planets orbiting a nearby star that meet pretty much every requirement for supporting life. They're almost exactly the same mass as the Earth, they are billions of years old (which means life could have had time to evolve), and they're orbiting their star at a distance that would support things like water flow and habitable temperatures.The two planets orbit Teegarden's star, an ancient star that is only 12-light-years away from the Earth. ("Only" is relative -- 12 light-years is equal to 70,540,000,000,000 miles.) Research on the planets and their sun, 621

Jennifer Dulos went missing two weeks ago, but her wealthy Connecticut hometown is only slowly waking up to the reality of her disappearance.Dulos, 50, was last seen driving a 2017 Chevrolet Suburban on May 24 in New Canaan, police said. Authorities found her car near a park, not far from her New Canaan house.Police said it has received more than 225 tips in the case, including nearly 70 responses to a request for video surveillance from homes and businesses.In developments last weekend, Dulos' estranged husband, Fotis Dulos, and his girlfriend, Michelle Troconis, 583

Illinois is now the 11th state in the United States to legalize the purchase and possession of recreational marijuana.Democratic Gov. JB Pritzker signed a bill Tuesday that allows adults 21 and over in the state to buy and possess small amounts of the drug.Adults will be able to purchase and possess 30 grams of cannabis, five grams of cannabis concentrate, and cannbis-infused products containing no more than 500 milligrams of THC. Nonresidents will be able to purchase half of each of those amounts.Under the law, medical patients would be permitted to buy marijuana seeds and grow up to five plants at home, so long as the plants are kept out of public view.Employers can still enforce a zero-tolerance or drug free workplace.The 747

In 2017, Uber unveiled a tip feature on its app to allow customers to leave their driver a tip. It turns out many customers do not leave a tip. According to a study conducted by Bharat Chandar, Uri Gneezy, John A. List, and Ian Muira with the University of Chicago, only about 16% of rides end with a tip. The study also found that 60% of Uber customers never tip, while 1% always leave a tip. List's study included 40 million trips in the cities of Chicago, Boston, San Francisco, Salt Lake City, Asheville, North Carolina, and Bloomington, Indiana.List's study found the average of those who do tip is .11, about 26% of their fare. The survey found that customers were more likely to tip between 3 to 5 a.m., as well as around 6 p.m. on Fridays; that female drivers, especially younger females, were more likely to earn tips; and that 5-star drivers were twice as likely to earn a tip as a 4.75-star driver.So should you tip? That is up to you, but know that according to the 992

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