Ocean temps rising faster than scientists thought: Report

This
story
was originally published by the HuffPost and is reproduced
here as part of the Climate
Desk
collaboration.

Ocean temperatures are rising faster than scientists previously
concluded, according to an alarming report released Thursday.

The research, published in the journal Science, said that scientists found
several inaccuracies with the way ocean temperatures were
previously measured and that warming levels for the past few
decades were actually greater than what scientists found in
2013.

“Recent observation-based estimates show rapid warming of
Earth’s oceans,” read the report, which used four independent
studies to track ocean heat content from 1971 to 2010. The report
also found that the warming rate has accelerated since 1991.

Oceans are warming primarily because of greenhouse gases released into the
atmosphere by human activity. Emissions in the United States jumped
3.4 percent last year from 2017 — the second-largest annual
increase in more than two decades, according to a
preliminary estimate
by the economic research company Rhodium
Group.

The Science report linked the warming to more rain, increased
sea levels, coral reef destruction, declining ocean oxygen levels,
and declines in ice sheets, glaciers, and ice caps in polar
environments.

“The fairly steady rise in OHC [ocean heat content] shows that
the planet is clearly warming,” the report stated, adding that
rising sea levels and temperatures should be concerning, “given
the abundant evidence of effects on storms, hurricanes, and the
hydrological cycle, including extreme precipitation events.”

The report calculates two scenarios depicting significant
warming this century. The first scenario falls in line with the
Paris Climate Agreement’s goal of reducing greenhouse gas
emissions to keep the average global temperature from rising no
more than 2 degrees C (3.6 degrees F) above preindustrial levels.
The second scenario assumes no change in emissions and projects
warming that could severely affect ocean ecosystems and sea
levels.

In October, a United Nations report warned that the
world is running out of time to reduce greenhouse gas emissions
before seeing potentially catastrophic effects of climate change.
Diplomats from all over the world reached a deal in December to
adopt rules to implement the Paris pact and track countries’
emissions.

The U.S. joined the deal last month
despite President Donald Trump’s 2017 pledge to withdraw the country
from the Paris accord. The U.S. may not withdraw from the agreement
until 2020.

This story was originally published by Grist with the headline
Ocean temps rising faster than scientists thought: Report
on
Jan 11, 2019.

Source: FS – All – Science – News
Ocean temps rising faster than scientists thought: Report