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By Bobby Bascomb Scientists have identified nine planetary boundaries that help regulate a livable planet. Human activities have pushed six of those nine critical Earth systems beyond safe limits ...

At the rate things are going, the Earth in the coming decades could cease to be a “safe operating space” for human beings. That is the conclusion of a new paper published Thursday in th… ...

At the rate things are going, the Earth in the coming decades could cease to be a “safe operating space” for human beings. That is the conclusion of a new paper published Thursday in the ...

As humanity crosses planetary boundaries, our “bank balance” is going down, she said. “We can party, even though our money in the bank is getting less – we just can’t party forever.

According to the University of California-San Diego, "the planetary boundaries concept, first published in 2009, identifies nine global priorities relating to human-induced changes to the environment.

The planetary boundaries framework defines biophysical and biochemical systems that regulate the stability of the Earth's systems. Boundaries mark points where each system diverges significantly from ...

Now in a new study, scientists are arguing that a 10th boundary could be added to the list—aquatic deoxygenation. Some bodies of water in the world (such as basins in the Black Sea, the Baltic ...

image: These are estimates of how the different control variables for seven planetary boundaries have changed from 1950 to present. The green shaded polygon represents the safe operating space.

Human activity has pushed Earth beyond four of nine 'planetary boundaries', scientists warn By Joel Achenbach Updated January 16, 2015 — 9.50pm first published at 10.54am ...

Some planetary boundaries, such as “introduction of novel entities” — CFCs would be an example of such things — remain enigmatic and not easily quantified. Better understood is the role of ...