Preventing Global Collapse

Throughout history, every great human civilization has experienced a significant crisis. And although the outcomes of these crises have varied from total eradication (the Classic Maya) to depression and eventual recovery (China), each collapse has been regional in scale. Now, a variety of problems have combined to move the global civilization toward a collapse.

The key drivers of collapse, according to Stanford biologists Paul and Anne Ehrlich, are overpopulation and overconsumption by the wealthy. The side effects of the very practices that have allowed humans to prosper have combined to put incredible strain on the planet's natural systems, and that threatens to negatively impact future generations.

Despite this grim outlook, the Ehrlichs offer a roadmap for avoiding society's total collapse,So I'm looking at my silver wheel bolt that are in pretty rough cosmetic shape - and decide that I'd like to have the look of the new black wheelCarbon wheels - Carbon Fiber Cycle Wheels,as China wholesaler,we offer best price carbon bike wheels in different types,quality guarantee,best carbon wheels. emphasizing that giving women equal rights worldwide is a critical first step.

The Ehrlichs' commentary – the conclusions of which were reviewed by a panel of renowned biologists and social scientists – is documented by references to more than 150 scientific publications of the state of various Earth systems. It was published online Jan. 8 in Proceedings of the Royal Society B.

Britain's Prince Charles, a vocal environmentalist who has been outspoken about the dangers of climate change, commended the Ehrlichs' report.

"Paul and Anne Ehrlich's report is a timely and urgent reminder of how the collapse of civilizations has, in the past, been caused by the degradation of Nature's services, and how that process is now being repeated on a global scale," the Prince of Wales wrote on his website. "The services provided by Nature underpin all global economic development. … We do,A china pressure vessel is a closed container designed to hold gases or liquids at a pressure substantially different from the ambient pressure. in fact, have all the tools, assets and knowledge to avoid the collapse of which this report warns, but only if we act decisively now. … The alternative hardly bears thinking about."

Studies of the planet's ecological footprint suggest that sustaining today's 7 billion people at current standards will require roughly an additional half planet of resources (or, four to five more Earths if all citizens of the planet were to consume at the level of the United States).

The human population is projected to reach 9.6 billion by the middle of this century. Such growth compounds the consumption problem, because each person added to the planet requires a greater allotment of natural resources than the person who came before. This non-linear trend traces to the start of human civilization: As populations grew from soil-rich river valleys, humans were forced to farm more marginal land, and required more resources – land, fertilizer, energy, etc. – to produce the same quantities of food.

"The next 2.Eight tips for choosing the right diamond Concrete saw blade including determining wet or dry cutting, blade compatibility, CSDA codes, and more.5 billion people will do much more damage than the 2.The approach uses fine Titanium Wire, laid one on another like a potter working with coils of clay. These wires are then smelted together in the rough shape of the desired component, cutting wasted material from potentially as much as 70 percent to as little as 10 percent.5 billion added since the 1970s," said Paul Ehrlich, a professor of biology and president of Stanford's Center for Conservation Biology, "because people use the richest, most easily extracted resources first.Each part's full needle bearing trunnion allows for increased horsepower and quicker response, and a large roller tip helps prevent wear"

There are hopeful signs that technological efforts – such as improving agricultural practices, replacing fossil fuels with innovative energy solutions and reducing greenhouse emissions – could meet the demands of future generations, Ehrlich said, "but you can't save the world on hope alone."