Water crisis, heat stress to bring down food supply in India and across the globe

News Network
March 18, 2023

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New Delhi, Mar 18: Food supply in India and across the globe will go down by at least 6 per cent by 2050 as water crisis and heat stress caused by climate change will hit productivity, the Global Commission on Economics of Water (GCEW) has warned.

The commission is convened by the Government of the Netherlands and facilitated by the Organisation for Economic Co-operation and Development (OECD). Its latest report used a large dimensional computable general equilibrium model to project impacts on global irrigated food production and food security.

Food supply decreases were projected for two climate change scenarios or representative concentration pathways (RCP) based on the intensity of the greenhouse gas emissions. The optimistic RCP 4.5 based on drastic cut in emissions and RCP 8.5 the worst-case scenario. The model used 2014 as base year.

"Even under the best-case climate change scenario of RCP4.5, most African countries experience an increase in people with severe food insecurity by more than one third," the report 'The What, Why and How of the World Water Crisis' said.

The "best case" scenario for India meant a 6.52 per cent fall in food supply while it was 16.1 per cent in the worst case scenario. In China, it was 8.97 per cent and 22.4 per cent, respectively while the fall in the US was pegged at 4.8 per cent and 12.6 per cent.

Food insecurity affects 72-81 crore people globally and is linked to water insecurity. The fall in production, the study said, will push 100 crore people into severe food insecurity, the report said.

In another report titled 'Turning the Tide', the GCEW issued a seven-point agenda for collective action: managing global water cycle with just and equity, adopt outcomes-focussed approach to water conservation, cease underpricing water, phase out subsidies in agriculture and water, establishing just water partnerships, fortifying freshwater storage systems and reshape the multilateral governance of water. 

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News Network
February 1,2026

Bengaluru: Karnataka Deputy Chief Minister D K Shivakumar on Sunday criticised the Union Budget presented by Finance Minister Nirmala Sitharaman, claiming it offered no tangible benefit to the state.

Though he said he was yet to study the budget in detail, Shivakumar asserted that Karnataka had gained little from it. “There is no benefit for our state from the central budget. I was observing it. They have now named a programme after Mahatma Gandhi, after repealing the MGNREGA Act that was named after him,” he said.

Speaking to reporters here, the Deputy Chief Minister demanded the restoration of MGNREGA, and made it clear that the newly enacted rural employment scheme — VB-G RAM G — which proposes a 60:40 fund-sharing formula between the Centre and the states, would not be implemented in Karnataka.

“I don’t see any major share for our state in this budget,” he added.

Shivakumar, who also holds charge of Bengaluru development, said there were high expectations for the city from the Union Budget. “The Prime Minister calls Bengaluru a ‘global city’, but what has the Centre done for it?” he asked.

He also drew attention to the problems faced by sugar factories, particularly those in the cooperative sector, alleging a lack of timely decisions and support from the central government.

Noting that the Centre has the authority to fix the minimum support price (MSP) for agricultural produce, Shivakumar said the Union government must take concrete steps to protect farmers’ interests.

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News Network
February 5,2026

Bengaluru: As air quality continues to worsen across several parts of the city, hospitals in Bengaluru are reporting a steady rise in patients suffering from respiratory illnesses such as asthma, bronchitis and Chronic Obstructive Pulmonary Disease (COPD), health officials and doctors said.

Data from the Suvarna Arogya Suraksha Trust (SAST) shows that 3,891 patients received treatment for respiratory ailments between April and November 2024. The figure rose to 4,187 during the same period in 2025.

Private hospitals, too, are witnessing a 10–15 per cent year-on-year increase in such cases.

While doctors caution that the rise cannot be attributed solely to air pollution, a significant number of patients are non-smokers with no prior history of respiratory disease.

“Nearly 70 per cent of the patients we see are non-smokers with no previous respiratory issues. When other causes are ruled out, air pollution emerges as the most likely factor,” said Dr Manjunath PH, consultant interventional pulmonologist at a hospital in Kengeri.

Doctors noted that patient footfall spikes during the winter months and around Deepavali, when air quality typically worsens.

“There is a clear correlation between poor air quality and the rise in cases. People commonly present with persistent cough, breathlessness and irritation of the respiratory tract, indicating the impact of polluted air on their health,” said Dr Sheetal Chaurasia, consultant in pulmonary medicine at a private hospital in Whitefield.

Dr Chaurasia added that respiratory tract infections are also on the rise.

“Poor air quality leads to chronic airway inflammation, making the airways more vulnerable to infections. We are seeing an increase in both upper and lower respiratory tract infections,” she said.

Patients with pre-existing respiratory conditions remain the worst affected.

“For those already diagnosed with respiratory illnesses, deteriorating air quality significantly worsens the condition. Both the frequency and severity of attacks increase sharply,” said Dr Vandana P, a pulmonologist at a hospital on Bannerghatta Road.

Doctors also flagged a worrying trend of rising respiratory problems among younger adults and children.

To reduce exposure, they advised people to wear masks while travelling on two-wheelers or autos and ensure adequate ventilation at home to minimise indoor air pollution.

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