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.

Photo: Rob McDougall (flickr)

Access to cheap energy underpins modern societies. Finding enough to fuel industrialized economies and pull developing countries out of poverty without overheating the climate is a central challenge of the 21st century. — Michael Wines, New York Times

Sub-Saharan Africa is perilously close to an energy crisis.

Massive drought across Kenya and Ethiopia has slowed hydropower production to a trickle. Rickety electrical infrastructure in South Africa and elsewhere has led to huge rolling blackouts expected to go on for years in some regions, according to the International Herald Tribune. The World Bank says Africa's "lack of reliable power has already begun to hamper the region's development." The worst-hit African economies have seen economic growth slow by more than two percent.

Energy shortages impact a broad array of activities in these countries. In Uganda, for instance, power shortages are causing gas stations to run low on diesel. The environment suffers as well. For the 80 percent of sub-Saharan Africans who lack electricity, Inter Press Service News Agency says:

The destruction of natural vegetation could lead to desertification when there are no water catchment systems to feed rivers and streams. And when there is no water, the population in such an area suffers in many ways. They cannot plant crops and their animals die.

Solutions to the energy crisis still seem far off. India and China have begun funding new power generating facilities — in one instance providing Zambia's energy producer, Zesco, with $1.2 billion for upgrades and new capacity creation. But the sheer size of the problem suggests a multinational approach. "The best answer, most experts consulted agree, would be for nations to cooperate on regional power solutions," the New York Times reports. "One or two large regional plants, they say, could supply power more cheaply and efficiently than dozens of smaller ones."

Today the Economist posted a briefing on the 2008 Freedom of the World report published by the Heritage Foundation and the Wall Street Journal, concluding that in recent years "African countries have made negligible progress liberalising their economies."

For the most part, although not without exception, the Heritage Foundation’s correlation between incomes per head and economic freedom holds good. Seven of the ten economically most free African economies (Mauritius, Botswana, South Africa, Namibia, Tunisia, Swaziland and Cape Verde) are, in fact, middle-income states. Uganda, Madagascar and Kenya, however, are very low-income countries.