Photo: greenhem (flickr)

Plastic bags have long been associated with litter and waste. The world uses tens of billions of plastic bags every year – bags that end up hanging from trees, traveling along freeways, escaping garbage cans and waste dumps.

Plastic-bag recycling rates are extremely low – about 1 to 3 percent worldwide, according to Reusablebags.com.

While plastics have helped us in many ways – medical advances, for one – by now we are seeing an increasing amount of wasteful uses. The mass production and ubiquitousness of plastic bags has hit a nerve in many developing countries. Lawmaking bodies in every region of the world have begun to regulate the use of plastics — and some are even banning the use of plastic bags outright.

Here's a partial list:

India. In August 2005, the state of Maharashtra initiated a bag ban after bags "blocked sewage and drainage systems during record monsoon rains," according to The Guardian. "Flooding and landslides killed more than 1,000 people in the state.” Anyone seen with a plastic bag can be fined 1,000 rupees, or about $25.

Kenya. The East African nation has enforced new regulations banning production and distribution of light-density bags, according to Nairobi's Business Daily (as reported by allAfrica.com). Three years ago, Kenyan researchers had appealed for a ban, and Nobel Peace Prize winner Wangari Maathai had argued that plastic bags can lead to malaria, because discarded bags left outside can fill with rainwater and breed disease-carrying mosquitoes.

Uganda and Tanzania. Kenya's neighbors also banned the use of all disposable one-use plastic bags nationwide. One Ugandan blogger wrote that “This seemingly radical step has a direct connection to human health and also to environmental well-being of citizens across Africa. Apart from the fossil fuel usage needed in their production, plastic bags have a remarkable ability to pollute across borders.”

China. Authorities announced that by this June, one-use plastic bags will be outlawed in the hope that residents will return to their old habit of using cloth bags and baskets. "Beijing residents appeared to take the ban in stride, reflecting rising environmental consciousness and concern over skyrocketing oil prices," reports National Geographic.

Some developed nations also have taken drastic steps to reduce the impact of plastics. Ireland, for example, imposed a 33-cent tax in 2002. It worked quickly to depress demand. According to the New York Times, the use of plastic bags dropped 94 percent within weeks.

The Economist recently took a look at how the process of recycling is helping to sustain one community in India. The dalits, a lower caste of Hindu, are participating in an economy that not only provides them with income, but helps to reuse some of India's waste.

Disposable plastic cups are many times reborn in Dharavi. In a spiralling continuum, they are discarded and gathered in, melted down to their polypropylene essence, and re-moulded in some new plastic form. Recycling is one of the slum's biggest industries. Thousands of tonnes of scrap plastic, metals, paper, cotton, soap and glass revolve through Dharavi each day.