A woman holds an umbrella to sheler from sun during a hot summer day in Vrindavan on April 26, 2024. (Photo by Money SHARMA / AFP) (Photo by MONEY SHARMA/AFP via Getty Images)

A woman holds an umbrella to shelter from sun during a hot summer day in Vrindavan on April 26, 2024. (Photo by Money SHARMA / AFP) (Photo by MONEY SHARMA/AFP via Getty Images)

A baby hippo stands next to other hippos stuck in a dried up channel near the Nxaraga village in the Okavango Delta on the outskirts of Maun on April 25, 2024. A drought across southern Africa has been driven mostly by the El Nino weather pattern, not climate change, scientists said. Zambia, Zimbabwe and Malawi have declared a national disaster over the severe dry spell that started in January and has devastated the agricultural sector, decimating crops and pastures. Scientists at the World Weather Attribution (WWA) research group found global warming had little to do with it. In a study focusing on Zimbabwe, Botswana, Zambia and Mozambique, researchers analysed historical weather data for the period from December to February -- the peak of the rainy season. They found rainfall has actually increased in the region as the planet warms. But effective precipitation has remained the same, likely because higher temperatures lead to more water evaporation, they said. On the other hand, El Nino, a recurring natural weather phenomenon, brought fewer showers, increasing the likelihood of severe droughts, the data showed. (Photo by Monirul Bhuiyan / AFP) (Photo by MONIRUL BHUIYAN/AFP via Getty Images) *** BESTPIX ***

Lamia Akter studies on bed in her home, after classes in school were cancelled due to the heat, in Dhaka on April 25, 2024. Millions of pupils in Bangladesh were told to stay home this week as the South Asian nation swelters through one of its worst heatwaves on record, with temperatures 4-5 degrees Celsius (7.2-9 degrees Fahrenheit) above the long-term average. (Photo by Munir UZ ZAMAN / AFP) / TO GO WITH Bangladesh-weather-heat by Shafiqul Alam (Photo by MUNIR UZ ZAMAN/AFP via Getty Images)

Mohammad Yusuf uses his mobile phone as he sits beside his daughter Lamia Akter, who is studying at home after classes in school were cancelled due to the heat, in Dhaka on April 25, 2024. Millions of pupils in Bangladesh were told to stay home this week as the South Asian nation swelters through one of its worst heatwaves on record, with temperatures 4-5 degrees Celsius (7.2-9 degrees Fahrenheit) above the long-term average. (Photo by Munir UZ ZAMAN / AFP) / TO GO WITH Bangladesh-weather-heat by Shafiqul Alam (Photo by MUNIR UZ ZAMAN/AFP via Getty Images)

Rumana Islam, whose daughter Mohua Akter Nur has stayed home after classes in school were cancelled due to the heat, speaks during an interview with AFP in Dhaka on April 25, 2024. Millions of pupils in Bangladesh were told to stay home this week as the South Asian nation swelters through one of its worst heatwaves on record, with temperatures 4-5 degrees Celsius (7.2-9 degrees Fahrenheit) above the long-term average. (Photo by Munir UZ ZAMAN / AFP) / TO GO WITH Bangladesh-weather-heat by Shafiqul Alam (Photo by MUNIR UZ ZAMAN/AFP via Getty Images)

Mohua Akter Nur studies at home, after classes in school were cancelled due to the heat, in Dhaka on April 25, 2024. Millions of pupils in Bangladesh were told to stay home this week as the South Asian nation swelters through one of its worst heatwaves on record, with temperatures 4-5 degrees Celsius (7.2-9 degrees Fahrenheit) above the long-term average. (Photo by Munir UZ ZAMAN / AFP) / TO GO WITH Bangladesh-weather-heat by Shafiqul Alam (Photo by MUNIR UZ ZAMAN/AFP via Getty Images)

Mohammad Yusuf rests in his home amid a severe heatwave in Dhaka on April 25, 2024. Millions of pupils in Bangladesh were told to stay home this week as the South Asian nation swelters through one of its worst heatwaves on record, with temperatures 4-5 degrees Celsius (7.2-9 degrees Fahrenheit) above the long-term average. (Photo by Munir UZ ZAMAN / AFP) / TO GO WITH Bangladesh-weather-heat by Shafiqul Alam (Photo by MUNIR UZ ZAMAN/AFP via Getty Images)