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Indian Ocean Warming leads to change in the Rainfall Pattern and Groundwater Storage in India

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Kolkata, Jan 10, 2017:  The changing rainfall pattern, which is linked to the warming of the Indian Ocean, is the key factor driving changes in groundwater storage in India. This is reported by a new study led by the Indian Institute of Technology (IIT) in Gandhinagar.

Published in the journal Nature Geoscience in January, the study shows that changing monsoon patterns “which are tied to higher temperatures in the Indian Ocean” are an “even greater driver of change” in groundwater storage than the pumping of groundwater for agriculture.

“Groundwater plays a vital role in food and water security in India. Sustainable use of groundwater resources for irrigation is the key for future food grain production,” said study leader Vimal Mishra, of IIT Gandhinagar. “And with a fast-growing population, managing groundwater sustainability is becoming even more important.

The linkage between monsoon rainfall and groundwater can suggest ways to enhance groundwater recharge in India and especially in the regions where rainfall has been declining, such as the Indo-Gangetic Plain,” he added. Groundwater withdrawals in the country have increased over ten-fold since the 1950s, from 10-20 cubic kms per year in 1950 to 240-260 cubic kms per year in 2009. And satellite measurements have shown major decline in groundwater storage in some parts of the country, particularly in northern India, the study notes.

“This study adds another dimension to the existing water management framework. We need to consider not just the withdrawals, but also the deposits in the system,” said Yoshihide Wada, co-author and the deputy director of the Water programme at the International Institute for Applied Systems Analysis in Austria.

By looking at water levels in wells around the country, the researchers could track groundwater replenishment following the monsoon. In addition, the researchers found that the monsoon precipitation is correlated with Indian Ocean temperature, a finding which could potentially help to improve precipitation forecasts and aid in water resource planning.

“Weather is uncertain by nature, and the impacts of climate change are extremely difficult to predict at a regional level. But our research suggests that we must focus more attention on this side of the equation if we want to sustain manage water resources for the future”, Wada added. (IANS)

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Governments Have Failed to Respond Adequately to Climate Change at The U.N. Conference: Activists

While there are parts of the package that could and should have been stronger, the implementation guidelines adopted today provide a strong basis to start

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U.N. Climate Conference
In this Dec. 11, 2018 photo a participant in U.N. climate conference walks by a photo of a satellite in Katowice, Poland. VOA

At the UN Climate Change Conference, which concluded in the presence of delegates from nearly 200 countries, green activists on Sunday said governments have failed to adequately respond to the catastrophic impact of climate change that was highlighted in a recent IPCC report.

Late Saturday night, the UN climate negotiations, known as COP24, drew to a close, with parties adopting a set of guidelines for the implementation of the Paris Agreement.

The climate change conference has failed to deliver a clear commitment to strengthen all countries’ climate pledges by 2020.

At the same time, a relatively effective though incomplete rule book for how to implement the Paris Agreement was finalised.

“It is a weak rule book that we have for implementation of the Paris Agreement. This rule book is completely insufficient to drive ambitious climate action,” New Delhi-based think tank Centre for Science and Environment (CSE) said.

United Nations, Global warming, climate change
Participants take part in plenary session during COP24 U.N. Climate Change Conference 2018 in Katowice, Poland. VOA

CSE has been tracking the negotiations at the 24th meeting of the Conference of Parties (COP) here.

The COP24 conference also failed to increase the ambition of countries to cut the emissions of greenhouse gases as per the findings of the Intergovernmental Panel on Climate Change’s (IPCC) Special Report on 1.5 degrees Celsius, CSE’s Deputy Director General Chandra Bhushan told IANS.

Limited progress was also made with regard to how financial support for poorer countries coping with devastating climate change impact will be provided and accounted for, says another climate negotiator.

The EU has made welcome efforts by building alliances with other countries and finding common ground on sticking points.

With several other members of the High Ambition Coalition, the EU has set a good example by committing to increase its 2030 climate target by 2020, in light of the warnings of the IPCC calling for “rapid and far-reaching” action to keep global warming below 1.5 degrees Celsius.

United Nations, Global warming, climate change
COP24 President Michal Kurtyka speaks during the opening of the COP24 U.N. Climate Change Conference 2018 in Katowice, Poland. VOA

However, NGOs and civil rights bodies say the COP24 has failed to convince all other governments to make the same commitment.

Germany doubled its support for the Green Climate Fund to support developing countries, but other European countries still have to do the same.

Climate Action Network (CAN) Europe Director Wendel Trio told IANS: “The weak outcome of this COP runs contrary to stark warnings of the IPCC report and growing demand for action from citizens. Governments have again delayed adequate action to avoid catastrophic climate breakdown.”

“The EU needs to push ahead and lead by example, by providing more support to poor countries and increasing its climate change pledge before the UN Secretary General Summit in September 2019. It must be a significant increase, even beyond the 55 per cent reduction some member states and the European Parliament are calling for.”

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UN Secretary-General Antonio Guterres addresses during the opening of COP24 UN Climate Change Conference 2018 in Katowice, Poland, Dec. 3, 2018. VOA

Jennifer Tollmann, climate diplomacy researcher, E3G said: “In the end the EU did finally step up as a bridge-builder. But we now need to see whether they can ace the real test.”

Andrew Wu, research analyst at World Resources Institute, said: “We cannot overlook land use, a sector which accounts for a quarter of all greenhouse gas emissions. There is now a common framework, supported by COP, to help countries measure land use emissions. All countries must adopt this and incorporate natural climate solutions in their nationally determined contributions (NDCs) to keep global warming below 2 degrees Celsius.”

Also Read: As Climate Talks Come to a Halt, Africa Suffers From Global Warming

Commenting on the decision, Chair of the Least Developed Countries Group, Gebru Jember Endalew, said: “While there are parts of the package that could and should have been stronger, the implementation guidelines adopted today provide a strong basis to start implementing the agreement.” (IANS)