Global warming will hit poorer countries harder
An environmental research published in Environmental Letters demonstrates there will be an increase in daily temperatures will happen first at tropical latitudes than mid-to-high latitude regions.
The study examines the link between cumulative CO2 emissions and more frequent hot days.
According to the 2010 GDP per capita, the world poorest people live at low latitudes. They'll be substantially exposed to daily temperatures extremes despite their mean global warming and cumulative CO2 emissions are lower.
Countries in the Horn of Africa (Ethiopia, Somalia, Djibouti and Eritrea) and West Africa are expected to be the worst affected.
"This study was the first to use climate models to simulate the end-to-end link between cumulative CO2 emissions and people experiencing more frequent hot days," said Luke Harrington, lead author.
Dr Manoj Joshi from the School of Environmental Sciences of the University of East Angila said, "We know that low latitude regions have much less variability in day-to-day temperatures when compared with the mid-latitudes, which means the 'signal' of climate change emerges quite quickly, and because of this, the frequency of extreme hot days increases rapidly too."
The results clarify how the wealthiest and poorest fractions of the population will experience differently climate change. More so, wealthy countries will be able to cope with the impacts of these changes more easily than poorer nations.
“Most importantly, this disparity in exposure to more frequent temperature extremes between the global rich and poor only becomes more pronounced as cumulative CO2 emissions continues to rise. This result is yet another piece of evidence demonstrating that limiting cumulative CO2 emissions over the 21st century will help avoid these impacts,” said Dr Ed Hawkins from the University of Reading to Environmental Letters.