The Guardian (August 28)
The Atlantic meridional overturning circulation (Amoc) “was already known to be at its weakest in 1,600 years as a result of the climate crisis.” Scientists believe its collapse would be catastrophic, but previous studies showed this was unlikely before 2100. Newer studies, with an extended horizon, are troubling. They “show the tipping point that makes an Amoc shutdown inevitable is likely to be passed within a few decades, but that the collapse itself may not happen until 50 to 100 years later.”
Tags: 2100, Amoc, Atlantic, Catastrophic, Climate crisis, Collapse, Inevitable, Scientists, Shutdown, Tipping point, Weakest
Fortune (January 20)
“Two-thirds of the world’s population already lives in countries where fertility is below” the replacement rate (an average fertility rate of 2.1 children per female). “Some of those economies are on track to see 20%-50% population declines by 2100, requiring big changes to societies and governments.” Younger people will also face a growing burden. “The world’s support ratio was 9.4 in 1997, or more than nine working-age people supporting one older person,” but this is expected to drop to just 3.9 by 2050 and currently stands at 6.5.
Tags: 1997, 2050, 2100, Burden, Children, Economies, Fertility, Governments, Population declines, Replacement rate, Support ratio, Two-thirds, Working-age
Investments & Pensions Europe (January Issue)
“The scientific evidence is unequivocal that if humanity continues along its current path, it is likely that, by 2100, global average temperatures will rise by between 2.7°C and 3.6°C. A rise of 4°C could lead to a cost of as much as $31trn (€29trn) per year in 2100… apart from the costs of loss of life and destruction of habitats.”
Tags: $31trn (€29trn), 2100, 4°C, Destruction, Evidence, Habitats, Humanity, Loss of life, Rise, Scientific, Temperatures, Unequivocal
