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That’s what has happened in the world’s oceans, according to a new report that finds that global populations of marine species have plummeted 49 percent since 1970.
Certain fish that people rely on for food suffered even steeper declines: Populations of tunas, bonitos, and mackerels dropped by 74 percent, according to the study, which was compiled by the World Wildlife Fund and reviewed by researchers at the Zoological Society of London.
By compiling data from 2,337 individual sources, including population estimates from scientific studies and databases, the researchers were able to estimate the changes in species populations from 1970 and 2012.
The researchers linked industrial pollution and plastic contamination of the oceans with the degradation of marine habitats and the death of endangered sea turtles and other wildlife. The burning of fossil fuels is accelerating the acidification of the oceans, destroying coral reefs that sustain a plethora of fisheries as well as 400 million people.
The world’s coral reefs, which support 25 percent of marine species, could be wiped out if ocean temperatures continue to rise at their current rate, according to a 2011 report from the World Resources Institutes.
The Next Great Extinction Crisis Is Under Way Under the Sea
The Holocene extinction, sometimes called the Sixth Extinction, is a name proposed to describe the currently ongoing extinction event of species during the present Holocene epoch (since around 10,000 BCE) mainly due to human activity. The large number of extinctions span numerous families of plants and animals including mammals, birds, amphibians, reptiles and arthropods. Although 875 extinctions occurring between 1500 and 2009 have been documented by the International Union for Conservation of Nature and Natural Resources, the vast majority are undocumented. According to the species-area theory and based on upper-bound estimating, the present rate of extinction may be up to 140,000 species per year.
originally posted by: MisterSpock
The root cause of this and most of our other environmental issues is overpopulation.
It's only going to get much much worse.
originally posted by: sunqueen30
Why isn't anyone talking about Fukushima? It has never been fixed. Irradiated water has been steadily polluting the Pacific since the tsunami damaged it. No one is forcing Japan to do anything about it. Radiated water has already reached California. Yet not a peep in the news...