Gland, Switzerland. WWF just released the new 2010 Living Planet report, which calls attention to plummeting populations of tropic species, the impact of a human production/consumption footprint on natural resources up to 50% more than the earth can sustain. The report uses a global Living Planet Index measuring the health of almost 8,000 populations of more than 2,500 species. Since 1970 there has been a decrease of 30% overall and 60% in the topics.

While the report shows some recovery among populations in temperate areas, due to greater conservation efforts and improvements in pollution and waste control, populations of freshwater tropical species have declined by almost 70%.

One indicator in the report, the Ecological Footprint, shows a doubling since 1966 of consumer demand for natural resources -- which by 2030 will require the resources of a second planet Earth. Demand for natural resources is especially high in North America.