Collapse

The world’s appetite for energy rose faster than usual last year because record high global temperatures meant more power was used for cooling, underscoring the vicious cycle between climate change and energy use.

Half of the increase in global emissions from energy last year was down to 2024 being the hottest year on record, the International Energy Agency said on Monday. Overall greenhouse gas emissions from energy use rose 0.8 per cent last year.

The predictable and foreseeable doom loop

The rollout of electric cars and the expansion of data centres needed for artificial intelligence were also to blame for rising power demands, it said, with server capacity increasing by a fifth — mostly in the US and China.

“What is certain is that electricity use is growing rapidly, pulling overall energy demand along with it to such an extent that it is enough to reverse years of declining energy consumption in advanced economies,” said IEA executive director Fatih Birol.

Significance

Our study presents a global assessment of microplastic pollution’s impact on food security. By analyzing a comprehensive dataset of 3,286 records, we quantify the reduction in photosynthesis caused by microplastics across various ecosystems. This reduction is estimated to cause an annual loss of 109.73 to 360.87 million metric tons (MT) for crop production and 1.05 to 24.33 MT for seafood production. By reducing current environmental microplastic levels by 13%, these losses could be mitigated by 14.26 to 46.91 MT in crops and 0.14 to 3.16 MT in seafood. These findings underscore the urgency for effective plastic mitigation strategies and provide insights for international researchers and policymakers to safeguard global food supplies in the face of the growing plastic crisis.

Abstract

Understanding how ecosystems respond to ubiquitous microplastic (MP) pollution is crucial for ensuring global food security. Here, we conduct a multiecosystem meta-analysis of 3,286 data points and reveal that MP exposure leads to a global reduction in photosynthesis of 7.05 to 12.12% in terrestrial plants, marine algae, and freshwater algae. These reductions align with those estimated by a constructed machine learning model using current MP pollution levels, showing that MP exposure reduces the chlorophyll content of photoautotrophs by 10.96 to 12.84%. Model estimates based on the identified MP-photosynthesis nexus indicate annual global losses of 4.11 to 13.52% (109.73 to 360.87 MT·y−1) for main crops and 0.31 to 7.24% (147.52 to 3415.11 MT C·y−1) for global aquatic net primary productivity induced by MPs. Under scenarios of efficient plastic mitigation, e.g., a ~13% global reduction in environmental MP levels, the MP-induced photosynthesis losses are estimated to decrease by ~30%, avoiding a global loss of 22.15 to 115.73 MT·y−1 in main crop production and 0.32 to 7.39 MT·y−1 in seafood production. These findings underscore the urgency of integrating plastic mitigation into global hunger and sustainability initiatives.

Abstract

Numerous initiatives towards sustainable development rely on global gridded population data. Such data have been calibrated primarily for urban environments, but their accuracy in the rural domain remains largely unexplored. This study systematically validates global gridded population datasets in rural areas, based on reported human resettlement from 307 large dam construction projects in 35 countries. We find large discrepancies between the examined datasets, and, without exception, significant negative biases of −53%, −65%, −67%, −68%, and −84% for WorldPop, GWP, GRUMP, LandScan, and GHS-POP, respectively. This implies that rural population is, even in the most accurate dataset, underestimated by half compared to reported figures. To ensure equitable access to services and resources for rural communities, past and future applications of the datasets must undergo a critical discussion in light of the identified biases. Improvements in the datasets’ accuracies in rural areas can be attained through strengthened population censuses, alternative population counts, and a more balanced calibration of population models.

The risk of a CWD spillover event is growing, the panel of experts say, and the risk is higher in states where big game hunting for the table remains a tradition. In a survey of US residents by the Centers for Disease Control and Prevention, 20% said they had hunted deer or elk, and more than 60% said they had eaten venison or elk mea

The movement of meat around the country also raises concerns of environmental contamination. CWD is not caused by bacteria or a virus, but by “prions”: abnormal, transmissible pathogenic agents that are difficult to destroy.

Today, as CWD spreads inexorably to more deer and elk, more people – probably tens of thousands each year – are consuming infected venison,

Well, that was a torrid read

Better surveillance to identify disease in people and game animals is more urgent than ever, experts say. Osterholm says the Trump administration’s proposed cuts to public health funding and research, and the US’s withdrawal from international institutions, such as the World Health Organization, could not be happening at a worse time.

I don't know, religious revelations nutters might be happy /s

This book is creating quite a buzz. See the basics and one review among many.

People being what they are, there's no doubt that this is an election-winning agenda for the Democrats. And the authors are both very serious people. I'm reluctant to write off Ezra Klein, who IMO is not just very smart but also circumspect and fair-minded.

But all this also looks to me like an advanced case of deluded wishful thinking. Or of "cornucopian economics", as EO Wilson called it.

What to conclude?

Faster then expected ?

I doubt those of us in the rich workd really care about that based on how we live now

The shipping industry has now joined the auto and aviation industries in viewing this “cleaner” alternative to fossil fuels as a means of reducing its emissions, without meaningfully changing its activities

Stupidity cubed ?

Student performance has been on a declining trend for 10 years. Student scores have dropped significantly in the past 5 years, losing almost the equivalent of a year of schooling. Over 60% of 15 year olds are falling behind in 18 countries.

Significance

Marine phytoplankton, which contribute ~45% of global net primary production, are projected to be affected by ongoing ocean acidification (OA). However, the response of phytoplankton to acidification is not well constrained in ultraoligotrophic tropical and subtropical oceans where small (<20 µm) phytoplankton dominate. By conducting onboard microcosm experiments, we found community-level primary production decreased consistently following CO2 enrichment in the North Pacific Subtropical Gyre and northern South China Sea, while no significant changes were observed at the northernmost boundary of the subtropical gyre. Eukaryotic phytoplankton but not cyanobacteria were key drivers of these responses which occur primarily under nitrogen limitation. These findings enhance our understanding of OA impacts on phytoplankton and marine productivity in a changing climate.

Abstract

Ocean acidification caused by increasing anthropogenic CO2 is expected to impact marine phytoplankton productivity, yet the extent and even direction of these changes are not well constrained. Here, we investigate the responses of phytoplankton community composition and productivity to acidification across the western North Pacific. Consistent reductions in primary production were observed under acidified conditions in the North Pacific Subtropical Gyre and the northern South China Sea, whereas no significant changes were found at the northern boundary of the subtropical gyre. While prokaryotic phytoplankton showed little or positive responses to high CO2, small (<20 µm) eukaryotic phytoplankton which are primarily limited by low ambient nitrogen drove the observed decrease in community primary production. Extrapolating these results to global tropical and subtropical oceans predicts a potential decrease of about 5 Pg C y−1 in primary production in low Chl-a oligotrophic regions, which are anticipated to experience both acidification and stratification in the future.

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.

Wharton budget model estimates that---even under myopic expectations---financial markets cannot sustain more than the next 20 years of accumulated deficits projected under current U.S. fiscal policy.

Abstract

Rising greenhouse gas concentrations and declining global aerosol emissions are causing energy to accumulate in Earth's climate system at an increasing rate. Incomplete understanding of increases in Earth's energy imbalance and ocean warming reduces the capability to accurately prepare for near term climate change and associated impacts. Here, satellite-based observations of Earth's energy budget and ocean surface temperature are combined with the ERA5 atmospheric reanalysis over 1985–2024 to improve physical understanding of changes in Earth's net energy imbalance and resulting ocean surface warming. A doubling of Earth's energy imbalance from 0.6±0.2 Wm−2 in 2001–2014 to 1.2±0.2 Wm−2 in 2015–2023 is primarily explained by increases in absorbed sunlight related to cloud-radiative effects over the oceans. Observed increases in absorbed sunlight are not fully captured by ERA5 and determined by widespread decreases in reflected sunlight by cloud over the global ocean. Strongly contributing to reduced reflection of sunlight are the Californian and Namibian stratocumulus cloud regimes, but also recent Antarctic sea ice decline in the Weddell Sea and Ross Sea. An observed increase in near-global ocean annual warming by 0.1 for each 1 Wm−2 increase in Earth's energy imbalance is identified over an interannual time-scale (2000–2023). This is understood in terms of a simple ocean mixed layer energy budget only when assuming no concurrent response in heat flux below the mixed layer. Based on this simple energy balance approach and observational evidence, the large observed near-global ocean surface warming of 0.27  from 2022 to 2023 is found to be physically consistent with the large energy imbalance of 1.85±0.2 Wm−2 from August 2022 to July 2023 but only if (1) a reduced depth of the mixed layer is experiencing the heating or (2) there is a reversal in the direction of heat flux beneath the mixed layer associated with the transition from La Niña to El Niño conditions. This new interpretation of the drivers of Earth's energy budget changes and their links to ocean warming can improve confidence in near term warming and climate projections.

The egg industry has undergone a lot of market consolidation, and the big producers are a kind of monopoly. The current shortage has created record profits.

"the current egg crisis is what the Sovietization of American business looks like. We don’t have egg companies in the business of making eggs anymore. We have egg companies in the business of exploiting egg shortages"