HUMAN FINGERPRINTS ON
OCEAN WARMING DETECTED
http://zeenews.india.com
- Most of the observed global ocean warming over the past
50 years is attributable to human activities, according to a new study.
The study by a team of Lawrence Livermore National Laboratory scientists
and international collaborators revealed that the observed ocean
warming over the last 50 years is consistent with climate models only if
the models include the impacts of observed increases in greenhouse gas
during the 20th century. Though the new research is not the first study
to identify a human influence on observed ocean warming, it is the first
to provide an in-depth examination of how observational and modeling
uncertainties impact the conclusion that humans are primarily
responsible.
The group looked at the average temperature (or heat
content) in the upper layers of the ocean. The observed global average
ocean warming (from the surface to 700 meters) is approximately 0.025
degrees Celsius per decade, or slightly more than 1/10th of a degree
Celsius over 50 years.
“We
have taken a closer look at factors that influence these results,” said
Peter Gleckler, an LLNL climate scientist and lead author of the new
study. “The bottom line is that this study substantially strengthens the
conclusion that most of the observed global ocean warming over the past
50 years is attributable to human activities,” he added. The
sub-surface ocean warming is noticeably less than the observed Earth
surface warming. “Although we performed a series of tests to account for
the impact of various uncertainties, we found no evidence that
simultaneous warming of the upper layers of all seven seas can be
explained by natural climate variability alone.
Humans have played a
dominant role,” Gleckler added. In this study the team, including
observational experts from the United States, Japan and Australia,
examined the causes of ocean warming using improved observational
estimates and the effects of the observed increase in greenhouse gases
over the 20th century. The finding has recently published in the
journal, Nature Climate Change.
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Natural
fluctuations alone do not explain warming in the upper layers of the
planet's oceans, confirms a new computer modeling study. The ingredient
necessary to fully account for rising water temperatures in the last 50
years? Humans' greenhouse gas emissions. "We're virtually certain that
the oceans have warmed, and that warming is caused not by natural
processes, but by rising greenhouse gases primarily," researchers say.
The earth caters to everyone's needs, but today we suffer because of our
greed for the enjoyment of our senses and for wealth.
WHAT DO THE VEDIC TEACHINGS TELL US?
We
can save the earth from further deterioration only when we can
understand the root cause of the present environmental disaster. ...
Recently, the United Nations Food and Agriculture Organization issued a
report stating that the livestock business generates more greenhouse gas
emissions than all forms of transportation combined. The Humane Society
of the United States has taken up the issue as well, running ads in
environmental magazines that show a car key and a fork. 'Which one of
these contributes more to global, warming?' the ads ask. They answer the
question with 'It's not the one that starts a car,' and goes on to cite
the UN report.
It is high time to eliminate the four major sins and our
unlimited greed to strive for the real aim of gaining transcendental
loving devotional service to God in His spiritual abode. God created the
earth and God alone can save the earth.
Śrīla Bhakti Swarup Tirtha Mahārāja :
“Only God Can Save This Earth”
Discourse at Maryland University, USA
Gaudiya Vaishnava Association
http://www.gva.in/index.php
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