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World climate on the brink of large-scale change, says international study

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By NewsGram Staff Writer

The global climate is on the verge of broad-scale change that could last for a number of decades, shows a study by British scientists.

The change is linked to cooling of the Atlantic, and is likely to bring drier summers in Britain and Ireland.

The study, which appeared in the journal Nature, is based on observational evidence of the link between ocean circulation and the decadal variability of sea surface temperatures called the Atlantic Multi-decadal Oscillation (AMO).

“Sea-surface temperatures in the Atlantic vary between warm and cold over time-scales of many decades. These variations have been shown to influence temperature, rainfall, drought and even the frequency of hurricanes in many regions of the world,” said lead author Gerard McCarthy from the National Oceanography Centre (NOC).

These climatic phases are the result of the movement of heat northwards by a system of ocean currents. This movement of heat changes the temperature of the sea surface, which has a profound impact on climate on time-scales of 20-30 years.

The strength of ocean currents has been measured by a network of sensors, called the RAPID array, which have been collecting data on the flow rate of the Atlantic meridonal overturning circulation (AMOC) for a decade. The authors used 100 years of sea level data, maintained by the National Oceanography Centre’s permanent service for mean sea level.

“By reconstructing ocean circulation over the last 100 years from tide gauges that measure sea level at the coast, we have been able to show, for the first time, observational evidence of the link between ocean circulation and the AMO,” said co-author Ivan Haigh, lecturer in coastal oceanography at the University of Southampton.

 

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The Trump Administration Just Lost Another Court Battle To Kids

The activists, whose ages range from preteen to the early 20s, are seeking various environmental remedies. A trial is scheduled for Oct. 29 in the federal court in Eugene, Oregon

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FILE - The coal-fired Plant Scherer, one of the nation's top carbon dioxide emitters, stands in the distance in Juliette, Ga., June 3, 2017. The Trump administration intends to roll back the centerpiece of former President Barack Obama’s efforts to slow global warming, seeking to ease restrictions on greenhouse gas emissions from coal-fired power plants. Young activists are suing the government for ignoring climate change. VOA

A federal appeals court on Friday rejected the Trump administration’s renewed bid to dismiss a lawsuit by young activists who say it is ignoring the perils of climate change.

By a 3-0 vote, the 9th U.S. Circuit Court of Appeals in San Francisco said the government fell short of the “high bar” needed to dismiss the Oregon case, originally brought in 2015 against the administration of President Barack Obama.

Twenty-one children and young adults accused federal officials and oil industry executives of violating their due process rights by knowing for decades that carbon pollution poisons the environment but doing nothing about it.

The government contended that letting the case proceed would be too burdensome, unconstitutionally pit the courts against the executive branch, and require improper “agency decision-making” by forcing officials to answer questions about climate change.

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Twenty-one children and young adults accused federal officials and oil industry executives of violating their due process rights by knowing for decades that carbon pollution poisons the environment but doing nothing about it. Pixabay

But the appeals court said the issues raised “are better addressed through the ordinary course of litigation.”

An earlier government bid to end the case failed in March.

The activists, whose ages range from preteen to the early 20s, are seeking various environmental remedies. A trial is scheduled for Oct. 29 in the federal court in Eugene, Oregon.

Also Read: FDA Approves Drug to Stop Some Malaria Relapses

Representatives of the U.S. Department of Justice did not immediately respond to requests for comment. A lawyer for the activists did not immediately respond to similar requests.

The case is U.S. et al v U.S. District Court for the District of Oregon, Eugene, 9th U.S. Circuit Court of Appeals. No. 18-71928. (VOA)

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