Earth’s ‘vital signs’ are worse than ever

Many of Earth’s “vital signs” have hit record extremes, according to a report published in the journal Bioscience.

The report, which assessed 35 vital signs, found that 25 of those were worse than ever recorded, including CO2 and methane emission levels.

Moreover, the temperature of Earth’s surface and oceans hit an all-time high, driven by record burning of fossil fuels.

Global heating is driving increasingly deadly extreme weather across the world, scientists said according to The Guardian, including hurricanes in the US and 50C heatwaves in India, with billions of people now exposed to extreme heat.

“We’re already in the midst of abrupt climate upheaval, which jeopardises life on Earth like nothing humans have ever seen,” said Professor William Ripple, of Oregon State University (OSU), who co-led the group.

“Climate change has already displaced millions of people, with the potential to displace hundreds of millions or even billions. That would likely lead to greater geopolitical instability, possibly even partial societal collapse,” Ripple added.

The assessment, made in 2023, also includes the results of a survey, carried out by The Guardian, of hundreds of senior climate experts in May of this year.

The researchers said global heating was part of a wider crisis that included pollution, the destruction of nature and rising economic inequality.

Among the policies scientists recommend are: gradually reducing the human population through empowering girls and women; protecting and restoring ecosystems; and integrating climate change education into global curriculums to boost awareness and action.

The report’s conclusion says that only through “decisive action” can we “avert profound human suffering and ensure that future generations inherit the livable world they deserve”, and adds that “the future of humanity hangs in the balance.”

Additionally, the scientists told The Guardian that it’s “imperative that huge progress is made” at this year’s UN Cop29 climate summit, which is taking place this week in Azerbaijan.

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