The House recently passed a controversial bill that seeks to establish an emissions trading structure referred to as cap-and-trade. It passed by a very slim margin, mostly along party lines, and was opposed by 44 Democrats. If the bill manages to pass a vote in the Senate and is signed by President Barack Obama, it would impose strict limits on the carbon-based energy used by American businesses.In a state like Virginia, where 81.1 percent of our energy is carbon-based, this means businesses will be forced to take on enormous costs from the government or from traders even if most of the initial allowances are granted. A state-by-state study released by the National Association of Manufacturers this week showed Virginia losing between 41,400 and 56,400 jobs over the next two decades if this legislation is passed.Cap-and-trade will effectively become one of the biggest tax increases in U.S. history. Even if allowances are granted for emissions permits to help offset the costs, those allowances will likely be temporary and not address the underlying deficiencies in the legislation.Meanwhile, large polluting countries like China and India have indicated time and again that they will not slow down their own productivity in order to address climate change. Of course this begs the following questions: How effective can our very expensive cap-and-trade system be without the participation of the worlds fastest-growing economies, and how will it affect the competitiveness of American businesses?Furthermore, given the lack of transparency with cap-and-trade systems, the environmental benefits are far from certain. In fact, prominent environmental advocates Greenpeace and Friends of the Earth actually oppose the current plan because they are unconvinced the bill will deliver the emissions reductions they believe are necessary.What is far more certain is that cap-and-trade will place a tremendous burden on businesses and households just when the nation should be emerging from the recession. The Energy Information Administration released a report that showed a likely loss of jobs if a cap-and-trade system is put into place. Moreover, the Heritage Foundation claims that unemployment will increase by 2 million during the programs first year. Over the long term, it found that cap-and-trade will likely result in a reduction of gross domestic product of $161 billion in 2020.Cap-and-trade will have the greatest impact, however, on Virginias manufacturing and agricultural operations, the backbone of our states financial strength. Many businesses will have to forgo investments that could have increased productivity and created jobs in order to meet emissions standards.