"In comparison to a world in which greenhouse gas (GHG) levels were stable, rising levels of greenhouse gases by the end of the twenty-first century will cause GDP per capita in the U.S. to be a) more than 10 percent lower, b) about 5 to 10 percent lower, c) about 1 to 5 percent lower, d) less than 1 percent lower or higher, e) about 1 to 5 percent higher, or f) more than 5 percent higher."
|Change in per-capita US GDP due to global warming|
|12.5%||a) more than 10 percent lower|
|7.1%||b) about 5 to 10 percent lower|
|21.4%||c) about 1 to 5 percent lower|
|35.7%||d) less than 1 percent lower or higher|
|16.1%||e) about 1 t o5 percent higher|
|7.1%||f) more than 5 percent higher|
The average value is around a 2% decrease, so the effect of global warming, according to these economists, is enough to cancel out one year of economic growth in this country.
This means that if our economy is 7 trillion dollars, it might be worth as much as $1.4 billion per year to offset this change.