Biodiversity Factors

http://www.worldwatch.org/pubs/mag/2003/161/mos/
 
Time it takes to grow 1 inch of soil 1,000 years
Time it has taken to erode and wash away one-third of the topsoil in the United States 40 years
 

Number of fish caught by a single Norwegian boat in 1986 120 million
Number of people in Norway 4 million
 

Kilograms of toxic chemicals that would be removed from the environment each year if U.S. homeowners reduced their use of pesticides by 10 percent  2 million
Kilograms of toxic chemicals that would be removed from the environment each year if U.S. manufacturing firms reduced their releases by 10 percent 700 million
 

Number of black rhinos in Africa in the 1960s 100,000
Number of black rhinos in Africa now 2,500
 

Number of pieces of live coral broken off from reefs (which are habitat to 1 million species) and purchased by Americans each year 350,000
Number of pieces purchased by the rest of the world each year 90,000
 

Number of Boeing 747 airplanes that could fit on the ground in New York’s Yankee Stadium 2
Number of Boeing 747s that could fit inside the largest size of trawl net used to catch ocean fish by commercial “factory ships” 12
 

Sources: “Biodiversity 911: Saving Life on Earth,” a traveling exhibit of the World Wildlife Fund, and Worldwatch Institute.

Responder

Introduce tus datos o haz clic en un icono para iniciar sesión:

Logo de WordPress.com

Estás comentando usando tu cuenta de WordPress.com. Cerrar sesión / Cambiar )

Imagen de Twitter

Estás comentando usando tu cuenta de Twitter. Cerrar sesión / Cambiar )

Foto de Facebook

Estás comentando usando tu cuenta de Facebook. Cerrar sesión / Cambiar )

Google+ photo

Estás comentando usando tu cuenta de Google+. Cerrar sesión / Cambiar )

Conectando a %s