The principal one is that, when considering all of the participants' overall costs of reducing emissions, economic theory and now business practice teaches us that a carbon trading approach is the least cost way of meeting the environmental objective.

CNN: Your ask the expert: Carbon trading

The carbon markets will certainly not be the only policy mechanism required for us to achieve the environmental objective scientists warn us we need to meet but it can certainly be an effective tool to begin to scale up the finance and investments that will put us on a safer carbon emissions trajectory.

CNN: Your ask the expert: Carbon trading, part 2

Enhanced investments would facilitate sustained coordination across research and regulatory agencies with the objective of reducing or eliminating harmful environmental exposures and modifying social and lifestyle factors implicated in breast cancer.

FORBES: New Government Breast Cancer Report Calls for Focus on Prevention, Study of Environmental Risk Factors