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Study Expects 2 Billion Climate Change Refugees by 2100 due to Global mean Sea Level Rise

Earth’s escalating population is expected to top 9 billion people by 2050 and climb to 11 billion people by 2100

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  • Earth’s escalating population is expected to top 9 billion people by 2050 and climb to 11 billion people by 2100
  • Those who once lived on coastlines will face displacement and resettlement bottlenecks as they seek habitable places inland
  • Feeding that population will require more arable land even as swelling oceans consume fertile coastal zones and river deltas, driving people to seek new places to dwell

New York, June 27, 2017: Global mean sea level rise may dislocate hundreds of millions of people by 2100, making about one-fifth of the world’s population — two billion people — climate change refugees, says a study.

Those who once lived on coastlines will face displacement and resettlement bottlenecks as they seek habitable places inland, according to the study published in the journal Land Use Policy.

“We’re going to have more people on less land and sooner than we think,” said lead author Charles Geisler, Professor Emeritus of Development Sociology at Cornell University in the US.

“The future rise in global mean sea level probably won’t be gradual. Yet few policy makers are taking stock of the significant barriers to entry that coastal climate refugees, like other refugees, will encounter when they migrate to higher ground,” Geisler said.

ALSO READ: Refugees in India Looming For Basic Rights: Here Is Why India Needs Refugee Law!

Earth’s escalating population is expected to top 9 billion people by 2050 and climb to 11 billion people by 2100, according to a United Nations report.

Feeding that population will require more arable land even as swelling oceans consume fertile coastal zones and river deltas, driving people to seek new places to dwell.

By 2060, about 1.4 billion people could be climate change refugees, according to the paper. Geisler extrapolated that number to two billion by 2100.

“The colliding forces of human fertility, submerging coastal zones, residential retreat, and impediments to inland resettlement is a huge problem,” Geisler said.

“We offer preliminary estimates of the lands unlikely to support new waves of climate refugees due to the residues of war, exhausted natural resources, declining net primary productivity, desertification, urban sprawl, land concentration, ‘paving the planet’ with roads and greenhouse gas storage zones offsetting permafrost melt,” Geisler said.

“Beyond sea level rise, low-elevation coastal zones in many countries face intensifying storm surges that will push sea water further inland. Historically, humans have spent considerable effort reclaiming land from oceans, but now live with the opposite — the oceans reclaiming terrestrial spaces on the planet,” said Geisler.

In their research, Geisler and Currens explored a worst-case scenario for the present century.

The authors noted that the competition for reduced space that they foresee will induce land-use trade-offs and conflicts. In the US and elsewhere, this could mean selling off public lands for human settlement.

“The pressure is on us to contain greenhouse gas emissions at present levels. It’s the best ‘future proofing’ against climate change, sea level rise and the catastrophic consequences likely to play out on coasts, as well as inland in the future,” Geisler said. (IANS)

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About 25% Tweets Regarding Climate Change are Produced by Bots, Reveals Study

The study could not identify the people responsible for setting up the bots that were trained to post climate denial messages on Twitter

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The researchers found that only five per cent of tweets advocating action to protect the environment were produced by bots. Pixabay

A lot of messages denying the effects of global warming might actually have been written by bots as new research from Brown University in the US found that about 25 per cent of the tweets about climate change that they analysed were produced by automated accounts.

Bots are non-personal or automated accounts that post content to social media platforms.

While the findings of the study are yet to be published, The Guardian newspaper reported them after seeing the draft study.

The results suggest that online conversations about climate change are often distorted due to the activities of the bots.

According to a report in the BBC on Saturday, the research team at Brown University analysed 6.5 million tweets from around the time US President Donald Trump revealed his intention to remove the US from the Paris climate accord in 2017.

The analysis showed a quarter of tweets on climate change were likely posted by bots.

“These findings suggest a substantial impact of mechanized bots in amplifying denials messages about climate change, including support for Trump’s withdrawal from the Paris agreement,” stated the draft study, according to The Guardian.

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A lot of messages denying the effects of global warming might actually have been written by bots as new research from Brown University in the US found that about 25 per cent of the tweets about climate change that they analysed were produced by automated accounts. Pixabay

The study could not identify the people responsible for setting up the bots that were trained to post climate denial messages on Twitter.

For the study, the researchers used a tool from Indiana University called Botometer, which uses an algorithm to assign a score to Twitter accounts based upon the likelihood they are automated.

ALSO READ: Google Indexes Invite Links To Private Group Chat on WhatsApp With a Simple Search

The researchers found that only five per cent of tweets advocating action to protect the environment were produced by bots. (IANS)