1. the curve from sperm-decline meta-analysis predicts that by 2045 median sperm counts will reach zero (because of chemicals in plastics) with no evidence the trend is tapering off
2. by 2045 global warming of >2°C may subject humans to thermal infertility
We can act.🧵
1.
We can act on this:
'If you follow the curve from the 2017 sperm-decline meta-analysis, it predicts that by 2045 we will have a median sperm count of zero. It is speculative to extrapolate, but there is also ft no evidence that it is tapering off.'dumptheguardian.com/society/2021/m…
2.
'Even species thought to roam far away from these sources of pollution are suffering from chemical contamination. A female killer whale.. was found to be one of the most contaminated biological specimens ever reported. Scientists say she never calved.'theconversation.com/male-fertility…
3.
'research suggests males of some species can become infertile even at less extreme temperatures [2-2.25C?]
Whether our findings extrapolate to other species, including mammals such as humans, is not yet clear. It’s certainly possible, given evidence..'theconversation.com/fly-infertilit…
4. More on chemicals and 'Western' sperm counts:
racist, sexist, and Eurocentric ideas 'can get embedded in the categories that scientists use to analyze data'
research needs to be 'designed, executed, and communicated by people with varied perspectives'.slate.com/technology/202…
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1.5-1.75°C by 2024-2026
1.75-2°C by 2029-2031
2-2.25°C by 2034-2036
Time's up.
Rethink human systems now to protect species and everyone while it's still too late.
🧵
State-corporate journalists/editors have ignored the latest climate models for years and years. They've had the information needed to warn the public for decades. Hellish two degrees and rising in the 2030s is nearly here.
The Extinction Economy is wiping out life as we know it. 40-70% of species are at critical extreme risk of extinction within a few decades. Abrupt climate change is just one compounding factor in the annihilation of biodiversity and life as we know it.
Scientists used to think utterly unsurvivable extremes wouldn't hit until 2081-2300 or later (or never). Now they fully expect abrupt global extinction horror by the 2040s.
1. 'What happens in the next two decades will very likely define the future of biodiversity and H. sapiens.' From 2023.
DOOM: For 250 years between 1720 and 1969, the US, UK, & Europe were the main CO2 emitters and the key wreckers of biodiversity. These criminal countries subsequently blocked any attempts to change the deeply entrenched economic system away from deadly capitalism and growth.
1. The US knew by the 1950s/60s that systems change was required to avoid global catastrophe. Scientists informed the President. However, the priorities remained power and wealth.
Earth's species will suffer global warming of 2, 2.5, or 3°C in 12 to 14 years. (No scientist really thinks we won't hit at least 1.96°C for the first time by 2038 after hitting 1.68°C in 2024.) Primates like humans are unlikely to survive for very much longer. Time to rethink.🧵
1. "a rise in global temperatures of 3.1C is not compatible with human survival." @jeremycorbyn
Organise for political and economic system change action while it's still too late to protect species and everyone. dumptheguardian.com/commentisfree/…
3°C trend from 2045. iopscience.iop.org/article/10.108…
COLLAPSING: scientists indicate civilisation-wrecking conditions are already developing as rapid mass extinction accelerates with billions set to be killed from 2029- 2048🧵
Current generic extinction rates likely to greatly accelerate in coming decades due to economic growth & overconsumption by the rich.
Economic activities during capitalism are destroying the conditions that make human life possible. pnas.org/doi/10.1073/pn… salon.com/2023/09/19/exp…
Plastic contamination will soon be "catastrophic" for human health and is slowly "killing the human race"
more cancer, more allergic diseases, more infertility