KEY POINTS

  • Global temperatures will reach extreme levels by 2070
  • 3 billion people will be subjected to extremely hot climate conditions
  • Rapid greenhouse gas reductions would lessen the areas affected by climate increase

A new study on global warming warned that the increasing amount of greenhouse gas emissions would eventually create climate conditions that are not suitable for humans. According to the study, almost half of the global population would be subjected to extremely hot conditions by 2070.

The new study was published in the journal Proceedings of the National Academy of Sciences of the United States of America. It focused on the changes in the climate niche in which humans have lived in for about 6,000 years.

According to the authors of the study, continuous emissions of greenhouse gas are affecting the climate niche and causing the global temperature to rise. As the temperature continues to rise, it will eventually reach a point that would turn most regions on Earth almost unlivable.

The researchers predicted that this could happen sometime in 2070. They estimated that about 3 billion people in the world would be forced to live in extremely hot environments.

Currently, about 0.8% of global land surface experience extremely hot climate conditions. These areas can be found in the hottest parts of the Sahara Desert. However, if greenhouse gas emissions are left unchecked, the number of areas with extremely hot climate conditions will reach 19% by 2070.

As noted by the researchers, these areas would include northern Africa, South Asia, the Middle East, parts of Australia and northern South America. The researchers stated that temperatures in these areas would rise to levels that are unsuitable for humans.

“Large areas of the planet would heat to barely survivable levels and they wouldn’t cool down again,” Marten Scheffer of Wageningen University in the Netherlands and co-author of the study said according to USA Today.

“Not only would this have devastating direct effects, it leaves societies less able to cope with future crises like new pandemics,” he added. “The only thing that can stop this happening is a rapid cut in carbon emissions.”

Fortunately, the researchers noted that the rise in global temperatures can still be curbed. If rapid and drastic solutions to cut greenhouse gas emissions are carried out today, only about half of the projected number of people will be subjected to extreme climate conditions.

The devastating bushfires in Australia have highlighted the type of disasters that scientists say the world will increasingly face due to global warming
The devastating bushfires in Australia have highlighted the type of disasters that scientists say the world will increasingly face due to global warming AFP / SAEED KHAN