eleitl

joined 10 months ago
MODERATOR OF
 

Abstract

Climate change alters the climatic suitability of croplands, likely shifting the spatial distribution and diversity of global food crop production. Analyses of future potential food crop diversity have been limited to a small number of crops. Here we project geographical shifts in the climatic niches of 30 major food crops under 1.5–4 °C global warming and assess their impact on current crop production and potential food crop diversity across global croplands. We found that in low-latitude regions, 10–31% of current production would shift outside the climatic niche even under 2 °C global warming, increasing to 20–48% under 3 °C warming. Concurrently, potential food crop diversity would decline on 52% (+2 °C) and 56% (+3 °C) of global cropland. However, potential diversity would increase in mid to high latitudes, offering opportunities for climate change adaptation. These results highlight substantial latitudinal differences in the adaptation potential and vulnerability of the global food system under global warming.

1
A small thing (consciousnessofsheep.co.uk)
1
No Escape from Fantasy Land (thehonestsorcerer.substack.com)
 

Abstract

Extreme heat is well-documented to adversely affect health and mortality, but its link to biological aging—a precursor of the morbidity and mortality process—remains unclear. This study examines the association between ambient outdoor heat and epigenetic aging in a nationally representative sample of US adults aged 56+ (N = 3686). The number of heat days in neighborhoods is calculated using the heat index, covering time windows from the day of blood collection to 6 years prior. Multilevel regression models are used to predict PCPhenoAge acceleration, PCGrimAge acceleration, and DunedinPACE. More heat days over short- and mid-term windows are associated with increased PCPhenoAge acceleration (e.g., Bprior7-dayCaution+heat: 1.07 years). Longer-term heat is associated with all clocks (e.g., Bprior1-yearExtremecaution+heat: 2.48 years for PCPhenoAge, Bprior1-yearExtremecaution+heat: 1.09 year for PCGrimAge, and Bprior6-yearExtremecaution+heat: 0.05 years for DunedinPACE). Subgroup analyses show no strong evidence for increased vulnerability by sociodemographic factors. These findings provide insights into the biological underpinnings linking heat to aging-related morbidity and mortality risks.

 

Abstract

The rate of natural sequestration of CO2 from the atmosphere by the terrestrial biosphere peaked in 2008. Atmospheric concentrations will rise more rapidly than previously, in proportion to annual CO2 emissions, as natural sequestration is now declining by 0.25% per year. The current atmospheric increment of +2.5ppm CO2 per year would have been +1.9ppm CO2, if the biosphere had maintained its 1960s growth rate. This effect will accelerate climate change and emphasises the close connection between the climate and nature emergencies. Effort is urgently required to rebuild global biodiversity and to recover its ecosystem services, including natural sequestration.

1
#300: Revolutionary times (surplusenergyeconomics.wordpress.com)
1
The Crisis Report - 103 (richardcrim.substack.com)
[–] [email protected] 6 points 2 months ago

It's in the article.

[–] [email protected] 1 points 2 months ago

Rudiger actually.

[–] [email protected] 8 points 2 months ago (2 children)

A friend of mine has just broken the record of 100 days living under water. He is aiming for 120 days.

[–] [email protected] 2 points 2 months ago (1 children)

Domestic scale storage ROIs a lot longer than that, despite 1 kWh going for over 0.3 EUR.

[–] [email protected] 3 points 3 months ago

No, it didn't. Do a linear semilog plot.

[–] [email protected] 9 points 3 months ago

No, we had precisely zero measurable impact on the Keeling curve.

[–] [email protected] 2 points 3 months ago

Thanks. I buy Vattenfall but make net 2/3rds of my own power via rooftop solar.

[–] [email protected] 2 points 3 months ago (1 children)

Thanks -- more torrents than nyaa.si?

[–] [email protected] 1 points 3 months ago

I think I would go over 10 kW if I fire up everything. Only obout 80 spinny plates of rust though.

[–] [email protected] 2 points 3 months ago (2 children)

Are you including nuclear power in renewable or is that a particular provider who claims net 100% renewable?

[–] [email protected] 0 points 3 months ago

Yes, you are a kid. Call me when you can still sit like that at twice your current age.

view more: ‹ prev next ›