UN investigator says medical waste risks ignored

(AP) -- A human rights investigator for the United Nations says up to a quarter of the world's trash from hospitals, clinics, labs, blood banks and mortuaries is hazardous and much more needs to be done to regulate it.

Wisdom of crowds

In countries that lack financial records, how can we tell who is truly poor? An innovative study suggests: Ask the neighbors.

UN calls for eco-friendly farming to boost yields

The United Nations food agency on Monday called for greater use of environmentally sustainable techniques by poor farmers in order to increase crop intensity to feed the world's growing population.

The ethics of biofuels

An article in the current issue of Global Change Biology Bioenergy outlines a framework for evaluating biofuels in order to address ethical issues surrounding the rapidly evolving race to develop biofuels.

Study finds energy limits global economic growth

A study that relates global energy use to economic growth, published in the January issue of BioScience, finds strong correlations between these two measures both among countries and within countries over time. The research ...

Water purification made simpler

(PhysOrg.com) -- Filtration systems used in homes in the developing world, says Kristen Jellison, can be made smaller and less expensive.

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