Recycling as a movement 4,000 years old . WRAP says that these relatively minor efforts already mean a 10 million- to 15 million-ton reduction in carbon dioxide ( CO2 ) emissions a year -- the equivalent of taking 3.5 million cars off the road . More than 500 million tons of material recycled every year . Comment: Health risks arising from poor recycling operations in China .
Recycling as a movement 4,000 years old . More than 500 million tons of material recycled every year . Comment: Health risks arising from poor recycling operations in China .