A dried-up lagoon in Colombia, which is in a part of the world disproportionately affected by the cost of heatwaves.Credit: Juan David Moreno Gallego/Anadolu Agency/Getty
Climate change has so far cost the global economy trillions of dollars, but low-income countries in tropical regions have borne the brunt of these losses, finds a study that analysed the economic consequences of heatwaves worldwide over a 20-year period.
The research, published on 28 October in Science Advances1, estimates that the global economy lost between US$5 trillion and $29 trillion from 1992 to 2013, as a result of human-driven global warming. But the effect was worst in low-income tropical nations, leading to a 6.7% reduction in their national income on average, whereas high-income countries experienced only a 1.5% average decrease.
HUMAN-INDUCED climate change is driving the world to the brink of five “disastrous” tipping points, warns a major study published today.
Some of the critical thresholds that, when crossed, lead to large and often irreversible changes in the climate system, may have already been passed due to 1.1°C of global heating since the Industrial Revolution, researchers said.
These could include the collapse of Greenland’s ice cap and a key current in the north Atlantic, the disruption of rain patterns upon which billions of people depend for food and an abrupt melting of carbon-rich permafrost.
CNN reports that satellite photos show that the overflowing Indus has created a new body of water in southern Pakistan some 62 miles (100km) wide. It will take days or weeks for the water to recede, and in the meantime millions are left homeless and over all, 33 million people have been affected by the worst monsoon floods in recorded history. CNN quotes Pakistan’s Climate Minister Sherry Rahman as saying “That parts of the country ‘resemble a small ocean,’ and that ‘by the time this is over, we could well have one-quarter or one-third of Pakistan under water.’”
Because of our burning of fossil fuels to drive cars and heat and cool buildings, the world is heating up. But the Indian Ocean is heating up a third faster than the rest of the world. Very warm waters in the Bay of Bengal are helping create more destructive cyclones and flooding. The air over warming waters contains more moisture than the 20th century average. Warming waters also make the winds that blow over them more erratic, and wayward winds from the Arabian Sea helped push the heavy monsoon rains farther north than they usually extend.
The international report was led by scientists from the U.S. National Oceanic and Atmospheric Administration’s (NOAA) National Centers for Environmental Information.
“The data presented in this report are clear — we continue to see more compelling scientific evidence that climate change has global impacts and shows no sign of slowing,” NOAA Administrator Rick Spinrad said in a statement. “With many communities hit with 1,000-year floods, exceptional drought, and historic heat this year, it shows that the climate crisis is not a future threat but something we must address today as we work to build a climate-ready nation — and world — that is resilient to climate-driven extremes.”
True to its name, the Wall Street Journal never fails to lay bare its corporate sympathies. In a recent feature headlined “The Place With the Most Lithium is Blowing the Electric-Car Revolution” (8/10/22), the Journal warps anti-neoliberal and Indigenous resistance to ecological destruction and resource plundering into pesky obstacles to green capitalist innovation.
As record-breaking high temperatures and historic droughts afflict millions of people around the world, a study published Thursday warned that by the end of the century, dangerous heat driven by the worsening climate emergency will hit much of the Earth at least three times more often than today.
The study—conducted by climate researchers at Harvard University and the University of Washington and published in the journal Nature Climate Change—shows how changes in the heat index driven by human carbon dioxide emissions will dramatically increase exposure to “dangerous” and “extremely dangerous” temperatures. The heat index is a measure of how hot it really feels, based on temperature and relative humidity.
The U.S. National Weather Service defines heat index temperatures over 103°F as “dangerous” and over 124°F as “extremely dangerous.”
With its carbon footprint from 1990 to 2014, the US caused nearly $2 trillion in damages to other countries, finds a new analysis.
How much “aid”, in all forms, the country has provided to other countries? The motive, character, use, implication, beneficiary of the so-called aid are not questioned/discussed here.
This is the face of carbon footprint, actually, climate-plunder/expropriation, which is global and impacting the entire humanity, and all lives. This is expropriation of climate from the entire humanity; and the humanity is paying with life.
The colossal amount of greenhouse gases (GHG) released by the US over the period cited above has led to natural disasters, and economic damages including crop failures in countries, resulting in $1.9 trillion in lost income globally, the report found.
The study by scientists from Dartmouth College and published in the journal Climatic Change on July 12, 2022 (Callahan, C.W., Mankin, J.S. “National attribution of historical climate damages”, Climatic Change 172, 40 (2022). https://doi.org/10.1007/s10584-022-03387-y).
Transporting ingredients and food products accounts for nearly one-fifth of all carbon emissions in the food system — a much bigger slice of the emissions pie than previously thought, according to the first comprehensive estimate of the industry’s global carbon footprint1.
Clearing land for farming, raising livestock and moving food to and from shops adds a large amount of greenhouse gas to the atmosphere. The United Nations estimates that growing, processing and packaging food accounts for one-third of all greenhouse-gas emissions. This has led to an explosion of studies looking into how food systems impact the climate, from causing damaging land-use changes to releasing greenhouse gases, says Jason Hill, an environmental scientist at the University of Minnesota in St Paul.
As global temperatures rise, desert climates have spread north by up to 100 kilometres in parts of Central Asia since the 1980s, a climate assessment reveals1.
The study, published on 27 May in Geophysical Research Letters, also found that over the past 35 years, temperatures have increased across all of Central Asia, which includes parts of China, Uzbekistan and Kyrgyzstan. In the same period, mountain regions have become hotter and wetter — which might have accelerated the retreat of some major glaciers.
Such changes threaten ecosystems and those who rely on them, says Jeffrey Dukes, an ecologist at the Carnegie Institution for Science’s Department of Global Ecology in Stanford, California. The findings are a “great first step” towards informing mitigation and adaptation policies, he says.