most sweeping emissions trading system companies would have to buy permits for every ton of carbon they emit, a system designed to provide financial incentives for those that reduce their pollution.

VOA: standard.2009.05.03

National and state governments around the world have been trying out various incentives and subsidies to promote clean renewable energy but the global economic slowdown has hurt the ability of many governments to dole out public funds.

VOA: standard.2010.03.23

The economy needs help. But rather than stimulating the economy by providing an improved incentives to work and invest, we have been devoting trillions of dollars in taxpayer money to expanding and creating permanent long-term government spending programs and income-redistribution mechanisms,".

VOA: standard.2009.04.03