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Heat waves are getting worse, but these simple measures can save many lives


Gulrez Shah Azhar writes: This summer’s shaping up to be especially bad in India. Satellite images show large areas dried up from lack of water. Without access to water, heat waves become particularly deadly. But heat deaths are preventable and simple measures could save lives. Here are three actions that would make an enormous difference.

Gulrez Shah Azhar, The Times of India

I grew up close to the tropics, in a north Indian city. During harsh summers the incandescent sun – the largest nuclear fusion reactor in the entire solar system – is unforgiving, and heat waves bake the ground and all that’s on it. Amidst power cuts, a searing hot wind blows. The feeling cannot be described or forgotten: of being restless and trapped. There is no relief from that humidity, sweat and exhaustion. It is burning, always and everywhere. We try to live through the day, to survive, but many are not so lucky.

As climate change intensifies, such extreme heat waves will get worse. Globally, 16 of the 17 hottest years on record have been since 2000, and heat waves have taken a mounting toll. Heat wave deaths happen everywhere. In the US, they cause more deaths than all other natural disasters combined. Normally cool Europe lost 70,000 people in 2003 and snowy Russia lost 56,000 in 2010.

In developing countries, heat waves are even more insidious. The frail, the elderly, children, women, migrants, the sick and people without access to simple ways to cool themselves in summer are at greatest risk, and yet most of these deaths are preventable, even under the harshest of conditions. That is why governments of developing countries must plan now for the heat waves of the future, or face a mounting death toll among society’s most vulnerable people.

India, where one out of every five people on this planet lives, is particularly vulnerable. In the summer of 2015 a heat wave with temperatures reaching 48°C left more than 2,330 people dead. Last year, 1,100 died and millions were put at risk. And these were likely underestimates because many deaths during heat waves are attributed to other causes. However, over the years, heat wave deaths have been steadily increasing.

Developing countries are not only at risk because many are closer to the equator or lack air conditioning, which research shows has the single largest impact in reducing heat deaths. Nutritional status also plays a role. Half of India’s children are undernourished, increasing their susceptibility. Further, half of all young women are anaemic and therefore already in a weakened state. Lack of access to affordable healthcare is another factor. The situation is so bad that catastrophic expenditure on healthcare is now the leading cause of falling into poverty, replacing dowry. Given these high expenses people think twice before seeking care, even in emergencies.

58% of India’s total population lives on less than Rs 200 per day. And when heat waves strike, poverty has consequences. An estimated 53% of households don’t have water available at home, 42% don’t have bathing facilities, more than half don’t have an indoor toilet. Just two cities in the entire country have uninterrupted water supply.

This summer is shaping up to be especially bad in India. Satellite images show large areas in the western and northern parts of the country having dried up from lack of underground water. Without access to water, heat waves become particularly deadly. A third of India’s population lacks electricity, precluding the use of fans and air conditioning.

But heat deaths are preventable and simple measures could save many lives. Just three main actions would make an enormous difference.

First, we need to raise awareness. Just an awareness of heat as a threat reduces the likelihood of falling sick from a heat wave. When aware, people are more likely to stay hydrated and indoors, away from the scorching sun. Government and media must work together to raise awareness of the dangers of heat waves, and the simple measures that can save lives.

Second, we need to develop city and state heat preparedness plans.  One plan for Ahmedabad, a city of 5.5 million, built public awareness about heat health risks through community outreach, initiated a weather forecast-based early warning system of impending heat waves, and organised staff trainings for concerned departments. It also ensured that there were ample supplies of ice packs, water coolers, beds and medicines to bring relief from the rising summer heat. These programmes have been shown to be effective in saving lives.

Finally, in rural areas we must build social safety nets and increase the availability of health services. Diet, clothing, housing designs, green neighbourhoods, ensuring availability of water and power are commonsense measures of protection that save lives. Simply checking in on our neighbours, the elderly and the sick can reduce their risk.

To be sure heat waves are not the only fatal natural disaster, and preparing for them costs money. But they deserve our attention. Costs of simple preparation measures are negligible compared to the benefits of saved lives.

India has learnt through tragic experience the devastation of heat waves. But with climate change making summer even hotter than those of my childhood, we need to do more. We must learn to mitigate their impacts even as temperatures soar. The country must now apply these lessons in every major city and across the vast rural areas where most poor populations reside. Other countries can also learn from this experience, and develop their own corresponding actions. Summer is here; there is truly no time to waste.

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Heat wave in India: Climate change is here, prepare for irregular weather, says senior meteorologist
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Temperatures across the country have reached soaring highs. A village called Bhira from Raigad district in Maharashtra recorded the worlds second highest temperature of 46.5°C on Tuesday. This was considered abnormal as Bhira lies in the coastal region. What are the reasons for this? Firstpost spoke to Jeevanprakash Kulkarni, a senior meteorologist from the Indian Institute of Tropical Meteorology, who is presently associated with a forum called Satarkindia that issues warning based on various climatic scenarios. (Related: Three sunstroke deaths in Maharashtra are the first heat casualties of 2017)

IMD predicts intense heat waves this summer
Umang Jalan, Down to Earth
The India Meteorological Department (IMD) has warned of a heat wave in the coming weeks. According to forecasts, temperatures are likely to rise above 40 degrees Celsius in most parts of the country and heat wave-like conditions are likely to develop in Gujarat, Odisha, Telangana and Andhra Pradesh. Such extreme temperature events are becoming a norm in India and other sub-tropical countries around the world. According to reports, climate change is likely to have caused this increase in incidences and severity of heat waves. IMD estimates that average temperatures between March and May in recent years, have increased by 1-1.2°C above the 100-year-average. (Related: The drought in Kerala is so acute that farmers are sinking borewells on the river bed)

Why is India getting hotter?
Jacob Koshy, The Hindu
The general answer would be global warming, but ‘how’ isn’t clear. All statistics on heat waves listed here refer to trends between March and June, but there’s no evidence that there are more heat waves in March as opposed to April or May. Studies have linked an increase in heat waves to more increase in El Nino events, or years marked by an anomalous heating in the Central Pacific Ocean that’s linked to a weakening of the Indian monsoon. Particularly, years succeeding an El Nino event are said to be linked to heat waves and mortality.

India’s heat waves spell doom for the working poor
Nagraj Adve, The Wire
Deaths due to heat waves in India have been in the thousands–in the years 1998, 2002, 2003 and 2015 in particular. Numbers, which are how the deaths are usually reported, are class- and gender-neutral. It’s one of the grave ironies of global warming that those least responsible for it are affected the most by it.

Searing Heat Waves Could Become Annual Threat
Andrea Thompson, Climate Central
The scorching, deadly heat waves that today strike only about once every 20 years could become an annual occurrence for more than half the world if nothing is done to curb emissions of heat-trapping greenhouse gases, a new study reported Tuesday. The work, detailed in the journal Climatic Change, also points to the worst heat waves of the future being much more intense. The results jibe with other research looking at how heat waves might change as the world warms, as well as those that have found that global warming has already juiced the heat waves we see today.

 

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