地球生态超载日：我们一直在透支_BEC初级作文

地球生态超载日：我们一直在透支

地球生态超载日：我们一直在透支1

For the rest of the year, the world is in ecological debt, with fish stocks and forests being depleted, land degraded and carbon dioxide building up in the atmosphere, the Global Footprint Network said.

Earth overshoot day is calculated by comparing the demands made by humans on global resources - our 'ecological footprint' - with the planet's ability to replenish resources and absorb waste.

This year, in less than nine months we have used as much of nature as the Earth can regenerate in a year. Earth overshoot day has fallen a couple of days earlier than it did last year.

The Global Footprint Network said that in 1961, humanity only used around two-thirds of the available natural resources on Earth, but by the 1970s increased carbon emissions and consumption began to outstrip what the planet could provide.

Humans now need the equivalent of 1.5 planets to sustain us, and by mid century it will have risen to two planets, the campaigners said.

China has the biggest total ecological footprint, because of its large population, but other countries have much higher demands on resources per person. If everyone were to live like U.S. residents we would need four planets to supply demand, the report said.

Four-fifths of the world's population live in countries that use more than their own natural systems can provide. In this country, we would need the equivalent of three and a half UKs to sustain current consumption levels.