Air quality

FILE - In this Dec. 4, 2018 file photo, people walk in Tree Library park in Milan, Italy. The city has ambitious plans to plant 3 million new trees by 2030_ a move that experts say could offer relief to the city's muggy and sometimes tropical weather. A study released on Thursday, July 4, 2019 says that the most effective way to fight global warming is to plant lots of trees - a trillion of them, maybe more. (AP Photo/Luca Bruno)
July 04, 2019 - 2:01 pm
WASHINGTON (AP) — A study says the best way to fight global warming is to plant a trillion trees — maybe more. Swiss scientists calculate that there's enough space to plant trees to cover 3.5 million square miles. That's roughly the size of the United States The study says those new trees could...
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United Nations Secretary General Antonio Guterres, right, follows the UAE Youth Minister, Shamma Al Mazrim as they take the stage at the opening ceremony of the United Nations climate change summit in Abu Dhabi, United Arab Emirates, Sunday, June 30, 2019. (AP Photo/Kamran Jebreili)
June 30, 2019 - 12:04 pm
ABU DHABI, United Arab Emirates (AP) — U.N. Secretary-General Antonio Guterres took his global message urging immediate climate action to officials gathered in the United Arab Emirates on Sunday, where production of hydrocarbons remains a key driver of the economy. Guterres is calling on...
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Lawmakers convene at the Oregon Senate after the minority Republicans ended a walkout they had begun on June 20 over a carbon-emissions bill they said would harm their rural constituents, at the Oregon Senate in Salem, Ore., Saturday, June 29, 2019. Nine of the 12 minority Republicans returned after Senate President Peter Courtney said the majority Democrats lacked the votes to pass the legislation aimed at countering climate change. ( AP Photo/Andrew Selsky)
June 29, 2019 - 6:14 pm
SALEM, Ore. (AP) — Republican lawmakers returned to the Oregon Senate on Saturday, ending an acrimonious nine-day walkout over a carbon emissions bill that would have been the second such legislation in the nation. The boycott had escalated when the Democratic governor ordered the state police to...
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Democratic presidential candidate former vice president Joe Biden, speaks during the Democratic primary debate hosted by NBC News at the Adrienne Arsht Center for the Performing Arts, Thursday, June 27, 2019, in Miami. (AP Photo/Wilfredo Lee)
June 28, 2019 - 8:51 am
MIAMI (AP) — The Latest on the second Democratic presidential debate (all times local): 11:45 p.m. Former Vice President Joe Biden says Kamala Harris mispresented his position on school busing decades ago, but he doesn't think she did it intentionally. The California senator challenged Biden's...
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June 26, 2019 - 3:28 pm
WASHINGTON (AP) — A top Environment Protection Agency official who helped lead the Trump administration's rollback of Obama-era restrictions of carbon emissions is resigning amid a congressional probe into whether he improperly aided former industry clients. EPA Assistant Administrator Bill Wehrum...
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FILE - In this Thursday, June 20, 2019, file photo, a TV reporter interviews self-employed logger Bridger Hasbrouck, of Dallas, Ore., outside the Oregon State House in Salem, Ore. The stark divide in Oregon between the state's liberal, urban population centers and its conservative and economically depressed rural areas makes it fertile ground for the partisan crisis currently unfolding there. Rural voters worry the cap-and-trade bill would be the end for logging and trucking. "It's going to ruin so many lives, it's going to put so many people out of work," said Bridger Hasbrouck, a self-employed logger from Dallas, Ore. (AP Photo/Gillian Flaccus, File)
June 26, 2019 - 2:42 pm
PORTLAND, Ore. (AP) — The divide in Oregon between the state's liberal cities and its conservative and economically depressed rural areas has made it fertile ground for the political crisis unfolding over a push by Democrats to enact sweeping climate legislation. Eleven Republican senators are...
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A man enjoys the sunrise on the Drachenberg over Berlin, Germany, Wednesday, June 26, 2019. Temperatures of up to 38 degrees are expected in the German capital. (Kay Nietfeld/dpa via AP)
June 26, 2019 - 6:54 am
BERLIN (AP) — The Latest on the heat wave in Europe (all times local): 12:50 p.m. Paris is banning old cars for the day as a heat wave aggravates the city's pollution. Regional authorities estimate the measure put into place Wednesday affects nearly 60% of vehicles circulating in the Paris region,...
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Children cool off in the fountain of the Trocadero, in Paris, Tuesday, June 25, 2019. More than half of France, including around Paris, was placed on an orange alert for intense heat Monday _ the second-highest level on the scale _ as very hot temperatures were predicted across continental Europe this week. (AP Photo/Thibault Camus)
June 26, 2019 - 3:37 am
PARIS (AP) — French President Emmanuel Macron sees himself as a global climate crusader but even a watchdog that he created says his government is lagging on its promises to the planet. The High Council for the Climate issued its first report Tuesday night on the French government's climate policy...
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Protesters flood the steps of the Oregon State Capitol Tuesday, June 25, 2019, to push back against a Republican walkout over a climate change bill that has entered its sixth day in Salem, Ore. The president of the Oregon Senate said Tuesday there weren't enough votes in his majority Democratic caucus to approve a landmark climate bill that has sparked a walkout by Republicans and left other key issues such as the state budget in limbo. (AP Photo/Sarah Zimmerman)
June 25, 2019 - 6:14 pm
SALEM, Ore. (AP) — The president of the Oregon Senate said Tuesday there weren't enough votes in his majority Democratic caucus to approve a landmark climate bill that has sparked a walkout by Republicans and exacerbated tensions between urban and rural areas. All 11 Republican senators extended...
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FILE- In this Sept. 30, 2015 file photo, Louis Fernandez walks along a flooded street in Miami Beach, Fla. The street flooding was in part caused by high tides due to the lunar cycle, according to the National Weather Service. When Democratic presidential candidates meet in Miami for their first debate it'll be in what you could call the country's Ground Zero for any climate-related sea level rise. (AP Photo/Lynne Sladky, File)
June 25, 2019 - 12:34 pm
MIAMI (AP) — Rising sea levels could threaten the very existence of Miami and much of the rest of South Florida, and Democrats are facing calls to confront climate change squarely during this week's presidential debates in the low-lying city. The City of Miami has a $400 million bond program to...
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