Lok Sabha Question No. 3593 (UNSTARRED), answered on 2023-03-22
Subject: Study of Rising Temperature
Ministry: EARTH SCIENCES
Asked by: Ramya  Haridas

## GOVERNMENT OF INDIA

## MINISTRY OF EARTH SCIENCES

## LOK SABHA

## UNSTARRED QUESTION NO. 3593 TO BE ANSWERED ON WEDNESDAY, 22 ND  MARCH, 2023

## STUDY ON RISING TEMPERATURE

## 3593.  MS. RAMYA HARIDAS:

Will the Minister of EARTH SCIENCES be pleased to state:

- (a) whether  the  Government  has  conducted  or  proposes  to  conduct  a  detailed  study  of  rising temperature and depleting source of water due to global warming;
- (b) if so, the details thereof; and
- (c) the modern technologies that are proposed to be used for the said purpose, including action plan  for  depleting  source  of  water  and  decreasing  ground  level  of  water  particularly  in Kerala?

## ANSWER

## THE MINISTER OF STATE (INDEPENDENT CHARGE) FOR MINISTRY OF SCIENCE AND TECHNOLOGY AND EARTH SCIENCES (DR. JITENDRA SINGH)

- (a)-(b)  Central  Ground  Water  Board  (CGWB),  under  the  Ministry  of  Jal  Shakti,  Department  of Water  Resources,  River  Development  and  Ganga  Rejuvenation  is  periodically  monitoring the  ground  water  levels  throughout  the Country  on  a  regional  scale,  through  a  network  of monitoring wells.

The Dynamic Ground Water Resources of the country are also being periodically assessed jointly by CGWB and State Governments. As per the 2017 assessment, out of the total 6881 assessment units (Block/ Taluks/ Mandals/ watersheds/ Firkas) in the country, 1186 units in 17  States/UTs  have  been  categorized  as  'Over-exploited'  where  the  total  Current  Annual Ground Water Extraction is more than Annual Extractable Ground Water Resource.

Central Ground Water Board is implementing a nationwide programme of 'National Aquifer Mapping and Management (NAQUIM)' for mapping of aquifers (Water bearing formations), their characterization  and  development  of  aquifer  management  plans  to facilitate  sustainable  development  of  ground  water  resources.  So  far  about  1l  lakhs  sq.km have  been  covered.  Aquifer  maps  and  management  plans  have  been  shared  with  the respective  State  Government  agencies.  Public  Interaction  Programs  are  being  organised  at grass root level for disseminating the tenets of the Aquifer Management Plans for the benefit of the stakeholders.

The  Research  &  Development  Division,  Project  Planning  Wing,  Department  of  Water Resources, River Development and Ganga Rejuvenation wing of Central Water Commission (CWC) have awarded studies on impact of climate change on water resources to some of the premier educational institutes. The studies are being implemented under the supervision of Indian National Committee on Climate Change (INCCC).

| Name of the Scheme                                                                                                         | State/institution            |
|----------------------------------------------------------------------------------------------------------------------------|------------------------------|
| Impact Assessment of Climate Change on Hydro- meteorological processes and Water Resources of Mahanadi River Basin         | IISC Bangalore (Lead Instt.) |
| Impact Assessment of Climate Change on Hydro- meteorological processes and Water Resources of Mahanadi River Basin         | IIT Bhubaneshwar             |
| Climate change impact studies for Rajasthan Area of inland drainage and Mahibasin                                          | MNIT Jaipur (Lead Instt.)    |
| Climate change impact studies for Rajasthan Area of inland drainage and Mahibasin                                          | CU Ajmer Rajasthan           |
| Climate change impact studies for Rajasthan Area of inland drainage and Mahibasin                                          | IIT Delhi                    |
| Impact of Climate Change on Water Resources of Tapi Basin                                                                  | SVNIT Surat(Lead Inst/.)     |
| Impact of Climate Change on Water Resources of Tapi Basin                                                                  | MNIT Jaipur                  |
| Impact of Climate Change on Water Resources of Tapi Basin                                                                  | MANIT Bhopal                 |
| Effects of Climate Change and land use/land cover changes on spatial and temporal water availability In Subarnarekha Basin | IIT Kharagpur                |
| Impact of Climate Change on Water Resources of Sabarmati Basin                                                             | IIT Gandhinagar(Lead Instt.) |
| Impact of Climate Change on Water Resources of Sabarmati Basin                                                             | SVNIT Surat                  |
| Impact of Climate Change on Water Resources in River Basins from Tadrito Kanyakumari                                       | IIT Mumbai (Lead Instt.)     |
| Impact of Climate Change on Water Resources in River Basins from Tadrito Kanyakumari                                       | NIT Surathkal                |
| Impact of Climate Change on Water Resources in River Basins from Tadrito Kanyakumari                                       | CWRDMKozhikode               |
| Statistical Downscaling for Hydro- climatic Projections with CMIPS Simulations to Assess Impact of Climate Change          | IIT Mumbai (Lead Instt.)     |
| Statistical Downscaling for Hydro- climatic Projections with CMIPS Simulations to Assess Impact of Climate Change          | IIT Guwahati                 |
| Statistical Downscaling for Hydro- climatic Projections with CMIPS Simulations to Assess Impact of Climate Change          | IIScBangalore                |
| Statistical Downscaling for Hydro- climatic Projections with CMIPS Simulations to Assess Impact of Climate Change          | IIT Gandhinagar              |
| Statistical Downscaling for Hydro- climatic Projections with CMIPS Simulations to Assess Impact of Climate Change          | IIT Kanpur                   |
| Dynamic Downscaling to study Climate Change Impact on Water Resources in India                                             | IIT Delhi                    |
| Dynamic Downscaling to study Climate Change Impact on Water Resources in India                                             | llTMadras                    |
| Dynamic Downscaling to study Climate Change Impact on Water Resources in India                                             | Anna University              |
| Hydro-Geological Assessment and Socio-Economic Implications of Depleting Water Resources in Nainital                       | BHU Varanasi                 |
| Hydro-Geological Assessment and Socio-Economic Implications of Depleting Water Resources in Nainital                       | CEDAR Dehradun               |
| Irrigation Efficiency Improvement Through On-Farm Water Management                                                         | IIT Roorkee                  |

- (c) CGWB has prepared NAQUIM report for all the states in the country including the State of Kerala wherein the information is available for about 11 districts and the report is available at http://cgwb.gov.in/AQM/Kerala%20%20Reportdistrict.html.

Also CGWB has brought out 'Master Plan for Artificial Recharge to Ground Water in India' (http://cgwb.gov.in/documents/masterplan-2013.pdf) and also 'Manual on Artificial Recharge of Ground Water' (http://cgwb.gov.in/documents/Manual-Artificial-Recharge.pdf) wherein various new technologies are discussed.

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