Earth Overshoot Day 2009

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Earth Overshoot Day marks the day when humanity begins living beyond its ecological means. Beyond that day, we move into the ecological equivalent of deficit spending, utilizing resources at a rate faster than what the planet can regenerate in a calendar year. Globally, we now now require the equivalent of 1.4 planets to support our lifestyles. But of course, we only have one Earth. The result is that our supply of natural resources continues to shrink, while our waste, primarily carbon dioxide, accumulates.

Humanity first went into overshoot in 1986. By 1996, however, humanity was using 15 percent more resources in a year than the planet could supply, with Earth Overshoot Day falling in November. This year, because we are now demanding resources at a rate of 40 percent faster than the planet can produce them, the Day has moved forward to September 23.

When is the Earth Overshoot Day 2009?

ref: http://www.footprintnetwo...

Prediction Guideline

• Your score is calculated at the end of the closing day by: (outcome accuracy x time weight).
• Time weight represents how much time you hold your prediction. So the early you predict, the higher your score if you get it right.
• If you update your prediction, we will score all your update(s) based on their time weight.

STEP 1:  My Prediction

	ZiiValue (chance)	MyValue (0% to 100% chance)	()	Possible Outcomes
	20%			before Aug 2009
	41%			in Aug 2009
	28%			before / on Sep 23 2009
	10%			after Sep 23 2009

STEP 2:  Comment

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