The fact that both human sperm count and insect biomass are estimated — Pollution

"Waste-water from the houses collected in the gutters running alongside the curbs and emitted a truly fearsome smell. There were no public toilets in the streets or squares. Visitors, especially women, often became desperate when nature called. In the public buildings the sanitary facilities were unbelievably primitive....As a metropolis, Berlin did not emerge from a state of barbarism into civilization until after 1870."

"Plastic pollution in the form of small particles (diameter less than 5 mm)—termed "microplastic"—has been observed in many parts of the world ocean. They are known to interact with biota on the individual level, e.g. through ingestion, but their population-level impacts are largely unknown. One potential mechanism for microplastic-induced alteration of pelagic ecosystems is through the introduction of hard-substrate habitat to ecosystems where it is naturally rare. Here, we show that microplastic concentrations in the North Pacific Subtropical Gyre (NPSG) have increased by two orders of magnitude in the past four decades, and that this increase has released the pelagic insect Halobates sericeus from substrate limitation for oviposition. High concentrations of microplastic in the NPSG resulted in a positive correlation between H. sericeus and microplastic, and an overall increase in H. sericeus egg densities. Predation on H. sericeus eggs and recent hatchlings may facilitate the transfer of energy between pelagic- and substrate-associated assemblages. The dynamics of hard-substrate-associated organisms may be important to understanding the ecological impacts of oceanic microplastic pollution."

"If we some day choke on the pollution of our own air, there will be little consolation in leaving behind a dying continent ringed with steel."

"By examining conditions in China and experimenting in a lab, the scientists suggest that a combination of weather patterns and chemistry could have caused London fog to turn into a haze of concentrated sulfuric acid."

"Wildfires, heat domes, hurricanes, and extreme weather events are hard to ignore; yet, much to the consternation of environmental activists, a significant segment of the population continues to deny anthropogenic global warming. Even among environmental advocates, there is often a tendency to view the rise in diseases such as cancer, Parkinson’s disease, and heart, liver, and kidney diseases—along with neurological disorders—as merely bad luck or the result of poor genetics. The difficulty in definitively linking these disorders to the increasing presence of chemical toxins and microplastics allows agrochemical, petrochemical, and pharmaceutical companies to continue their practices without accountability. The industrial use of glyphosate and other pesticides, PFAS, heavy metals, dioxins, phthalates, and VOCs continues to accumulate in our environment, creating an ever more toxic planet. Bioaccumulation may be the most dangerous term that people either don’t understand or don’t know. Every person and organism has physiological thresholds for warding off viruses, bacteria, and chemical toxins, which, when exceeded, can lead to illness, disease, or even death. Much to the delight of chemical companies, the greatest threats to our biosphere—chemical toxins and waste—often go unnoticed."

"Net-based surveys are less subjective than direct observations but are limited regarding the area that can be sampled (net apertures 1–2 m and ships typically have to slow down to deploy nets, requiring dedicated ships time). The plastic debris sampled is determined by net mesh size, with similar mesh sizes required to make meaningful comparisons among studies. Floating debris typically is sampled with a neuston or manta trawl net lined with 0.33 mm mesh. Given the very high level of spatial clumping in marine litter, large numbers of net tows are required to adequately characterize the average abundance of litter at sea. Long-term changes in plastic meso-litter have been reported using surface net tows: in the North Pacific Subtropical Gyre in 1999, plastic abundance was 335 000 items/km2 and 5.1 kg/km2, roughly an order of magnitude greater than samples collected in the 1980s. Similar dramatic increases in plastic debris have been reported off Japan. However, caution is needed in interpreting such findings, because of the problems of extreme spatial heterogeneity, and the need to compare samples from equivalent water masses, which is to say that, if an examination of the same parcel of water a week apart is conducted, an order of magnitude change in plastic concentration could be observed."