SINGAPORE, Oct 25 (Reuters) - The world is heading towards a series of environmental "tipping points" that could cause irreversible damage to water supplies and other life-sustaining systems, the research arm of the United Nations warned on Wednesday. Climate change and the overuse of resources have put the world on the brink of six interconnected tipping points that "could trigger abrupt changes in our life-sustaining systems and shake the foundation of societies," the UN University's Institute for Environment and Human Security (UNU-EHS) said. "Once these thresholds are passed, the system fails to function as it normally would, and you get new risks cascading out, and these new risks can transfer to other systems," said UNU-EHS researcher Jack O'Connor, lead author of the report. "We should be expecting these things to happen because in certain areas they are happening already." The Interconnected Disaster Risks report, published ahead of COP28 climate talks next month, identified accelerating rates of extinction, groundwater depletion, glacial melt and extreme heat as the major interconnected threats. It warned that 1 million plants and animals could be wiped out "within decades", with the loss of key species to "trigger cascading extinctions of dependent species" and raise the likelihood of ecosystem collapse. Many of the world's biggest aquifers are already depleting faster than they can be replenished, with Saudi Arabia, India and the United States already facing grave risks. Run-offs from glacial melt are also set to decline. "Heat is causing us to extract more of that groundwater because of drought," said Caitlyn Eberle, another lead author. "Many of those glaciers in the Rocky Mountains, the Himalayas and the Andes feed into these rivers and groundwater systems, so as those glaciers disappear there is less water available." The researchers also warned of the growing risks posed by space debris, with collisions set to render the earth's orbit "unusable" and make future space activity - including satellite monitoring of environmental threats - impossible. In another tipping point, worsening climate hazards are now making insurance unaffordable, with half a million homes in Australia alone set to be uninsurable by 2030, they said. "Once this point is passed, people are left without an economic safety net when disasters strike," the report said.
Earths vital signs worse than at any time in human history, scientists warn
Earths vital signs are worse than at any time in human history, an international team of scientists has warned, meaning life on the planet is in peril. Their report found that 20 of the 35 planetary vital signs they use to track the climate crisis are at record extremes. As well as greenhouse gas emissions, global temperature and sea level rise, the indicators also include human and livestock population numbers. Many climate records were broken by enormous margins in 2023, including global air temperature, ocean temperature and Antarctic sea ice extent, the researchers said. The highest monthly surface temperature ever recorded was in July and was probably the hottest the planet has been in 100,000 years. The scientists also highlighted an extraordinary wildfire season in Canada that produced unprecedented carbon dioxide emissions. These totalled 1bn tonnes of CO2, equivalent to the entire annual output of Japan, the worlds fifth biggest polluter. They said the huge area burned could indicate a tipping point into a new fire regime. The researchers urged a transition to a global economy that prioritised human wellbeing and cut the overconsumption and excessive emissions of the rich. The top 10% of emitters were responsible for almost 50% of global emissions in 2019, they said.
Dr Christopher Wolf, at Oregon State University (OSU) in the US and a lead author of the report, said: Without actions that address the root problem of humanity taking more from Earth than it can safely give, were on our way to the potential collapse of natural and socioeconomic systems and a world with unbearable heat and shortages of food and freshwater. By 2100, as many as 3 billion to 6 billion people may find themselves outside Earths livable regions, meaning they will be encountering severe heat, limited food availability and elevated mortality rates. Prof William Ripple, also at OSU, said: Life on our planet is clearly under siege. The statistical trends show deeply alarming patterns of climate-related variables and disasters. We also found little progress to report as far as humanity combating climate change. Our goal is to communicate climate facts and make policy recommendations. It is a moral duty of scientists and our institutions to alert humanity of any potential existential threat and to show leadership in taking action. The analysis, published in the journal Bioscience, is an update of a 2019 report that has been endorsed by 15,000 scientists. For several decades, scientists have consistently warned of a future marked by extreme climatic conditions caused by ongoing human activities, the report says. Unfortunately, time is up we are pushing our planetary systems into dangerous instability. Prof Tim Lenton, at the University of Exeter in the UK, the co-author, said: These record extremes are alarming in themselves, and they are also in danger of triggering tipping points that could do irreversible damage and further accelerate climate change. Our best hope to prevent a cascade of climate tipping points is to identify and trigger positive tipping points in our societies and economies, to ensure a rapid and just transition to a sustainable future.
The scientists said: We are shocked by the ferocity of the extreme weather events in 2023, [which caused] profoundly distressing scenes of suffering to unfold. We are afraid of the uncharted territory that we have now entered.
The report highlighted severe flooding in China and India, extreme heatwaves in the US and an exceptionally intense Mediterranean storm led to the deaths of thousands of people in Libya. The report said that by mid-September, there had been 38 days with global average temperatures more than 1.5C above pre-industrial levels, which is the worlds long-term goal for limiting the climate crisis. Until this year, such days were a rarity, the researchers said. Other policies recommended by the scientists included phasing out fossil fuel subsidies, ramping up forest protection, a shift towards plant-based diets in wealthy countries and adopting international treaties to end new coal projects and phase out oil and gas. We also call to stabilise and gradually decrease the human population with gender justice through voluntary family planning and by supporting womens and girls education and rights, which reduces fertility rates, they said. Big problems need big solutions. Therefore, we must shift our perspective on the climate emergency from being just an isolated environmental issue to a systemic, existential threat. Although global heating is devastating, it represents only one aspect of the escalating and interconnected environmental crisis that we are facing eg, biodiversity loss, fresh water scarcity, and pandemics. Dr Glen Peters, at the Global Carbon Project, said recently that the preliminary estimate for global CO2 emissions in 2023 was a rise of 1% to yet another record. Global emissions must fall by 45% to have a good chance of staying under 1.5C of heating. In September, a different analysis of the Earth system using nine planetary boundaries concluded that this planets life support systems had been so damaged that Earth was well outside the safe operating space for humanity. The planetary boundaries are the limits of key global systems such as climate, water and wildlife diversity beyond which their ability to maintain a healthy planet is in danger of failing.
Well, we had a good run, time to pack it up. :v At least humanity managed to generate a lot of money for the shareholders while we were here.
We should erect a golden statue on the moon to commemorate the great share holder value we had made and let future evolved races or aliens stumble upon it to know what the sum of humanity had done.
I've been reading headlines like this for basically as long as I've been capable of reading headlines, and I just can't find it in myself to care anymore. The world is fucked and there isn't a goddamn thing we can do about it.
The only good news is the rich people are also mortal.
That's what they want you to think.
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