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HUMANITY DOOMSDAY CLOCK - Moves forward to 2125 due to election of US President trump.

Estimate of the time that Humanity will go extinct or civilization will collapse. The HUMANITY DOOMSDAY CLOCK moves forward to 2125 due to US President trump's abandonment of climate change goals. Apologies to Bulletin of the Atomic Scientists for using the name.

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Monday, July 21, 2014

HUMANITY DOOMSDAY CLOCK - 2150 AD


Barry, My Liege :

The DOOMSDAY CLOCK will note human actions where humanity fails to act collectively by reducing the time we have left. It will note instances of where we act collectively by extending the DOOMSDAY date.

As a species, our collective actions create the conditions for our demise in the forseeable future.

Science has recorded previous species die-offs on the Earth.

Humanity is susceptible to a similar species die-off or civilization collapse.

There are 9 planetary boundaries which, if crossed, will destroy the Earth's ability to support human life. [http://pdxscholar.library.pdx.edu/cgi/viewcontent.cgi?article=1063&context=iss_pub]

We have already crossed several boundaries according to journalist Alice Friedemann.

CLIMATE CHANGE - The boundary is 350 ppm of CO2, currently we are at 387 ppm. The average for June 22014 is 401.

OCEAN ACIDIFICATION - Aragonite saturation state in surface water boundary is 2.75 Omega units, currently we are at 2.90.

STRATOSHPERIC OZONE DEPLETION - Ozone concentration (Dobson Units) boundary is 276, we are at 283 today.

GLOBAL NITROGEN CYCLE - Rate of Nitrogen removal from atmosphere (million tons per year) - Boundary is 9, we are at 133 now.

RATE OF BIODIVERSITY LOSS - Extinction rate (species per million per year) - Boundary 10, currently we see more than 100 species go extinct per year.

We are close to crossing the boundary for other planetary boundaries.

GLOBAL PHOSPHORUS CYCLE - Phosphorus rate of flow into oceans (million tons per year) - boundary is 12, we are now at 10.

DEPLETION OF FRESH WATER (cubic km per year) - Rate of human consumption boundary 4000, currently we are at 2400.

LAND SYSTEM CHANGE - No quantifiable boundary, but we currently use 35% of the land surface for crops and animals. Little or no more arable land is available.

AEROSOL LOADING - Boundary unknown but damage is evident.

CHEMICAL POLLUTION - Boundary unknown, but damage to human health is well documented. Between 80,000 and 100,000 different chemicals are traded globally.

Your faithful servant,

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