Untitled Document What are the pros and cons of marine aquaculture, of raising ocean fish instead of catching them in the wild? Marine aquaculture has grown in popularity in response ]]> Untitled Document Are antibacterial soaps better than plain soaps? University of Michigan researchers reviewed numerous studies conducted between 1980 and 2006 and conc]]> Untitled Document Who is addressing the incredible waste generated by the nation’s bottled-water industry? The plastic waste spawned by the recent as]]> Untitled Document OK, once and for all, which is more environmentally friendly, paper or plastic, at the grocery checkout? The city of San Francisco recently banned pl]]> Untitled Document What is the impact of all the littering that individuals do, largely from their cars and on highways? How can we strengthen laws to prevent it? Environme]]> Dear “Earth Talk”: Why do environmentalists advocate that people “eat locally?” I don’t understand the connection between patronizing local food producers and enviro]]> Untitled Document What goes into chocolate that would raise environmental concerns? Like coffee beans, the cacao seeds from which we derive chocolate ]]> Cloning has been controversial ever since Scottish scientists announced in 1996 that they had cloned their first mammal, a sheep they named Dolly. While Dolly lived a painful, art]]> Dear "Earth Talk": What environmental and health problems are associated with the use of chlorine by the paper industry? Is chlorine really essential in the production of paper? -- Misty Landlet]]> Untitled Document Recent NASA photos showed the opening of the Northwest Passage and revealed that a third of the Arctic’s sea ice has melted in recent years. Are sea level]]> Untitled Document Is it true that refilling and reusing some types of plastic bottles can cause health problems? Most types of plastic bottles are safe to reuse at ]]> Untitled Document How can a residential or commercial roof be modified to provide environmental benefits? Most buildings are designed to shed rain and so are built with hard, impene]]> Untitled Document Is it true that the DEET used in most mosquito repellents is toxic? If so, what problems does it cause? And what are some nontoxic alternatives for]]> Untitled Document The 2008 Summer Olympics in China is drawing a lot of attention right now for political reasons. Less known is that China has made an effort to mak]]> Dear “Earth Talk”: What are the leading causes of child mortality around the world, and what can be done about it? — Susan Hale, Oquawka, Ill. The statistics are staggering. In the ]]>