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Study shows how human activities are impacting ocean

Human-induced changes to Earth’s carbon cycle, such as rising atmospheric carbon dioxide and ocean acidification, have been observed for decades. However, a study published this week in Science showed human activities, in particular industrial and agricultural processes, have also had significant impacts on the upper ocean nitrogen cycle, according to The School of Ocean and Earth Science and Technology at University of Hawaii at Manoa.

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Ferguson gives thanks after a quiet night

FERGUSON, Mo. — Protesters in Ferguson pressed pause Thursday as the city welcomed Thanksgiving, decorating boarded-up storefronts with some Dr. Seuss inspiration and gathering for church services — a stark contrast to previous days of outrage over the grand jury decision in the Michael Brown case.

US tightens smog limits

WASHINGTON — In a fresh confrontation with Republicans, the Obama administration on Wednesday proposed stricter emissions limits on smog-forming pollution linked to asthma and respiratory illness. The move fulfilled a long-delayed campaign promise by President Barack Obama but left environmental and public health groups wanting more.