Ask the citizens of the former Soviet Union how that turned out.
Anyway, here's a proposal that's sickening and scary at the same time:
Every adult should be forced to use a 'carbon ration card' when they pay for petrol, airline tickets or household energy, MPs say.
The influential Environmental Audit Committee says a personal carbon trading scheme is the best and fairest way of cutting Britain's CO2 emissions without penalising the poor.
Under the scheme, everyone would be given an annual carbon allowance to use when buying oil, gas, electricity and flights.
Somehow I just don't see Richard Branson living with, or abiding by, the same allotment that my relatives in Kent or Rugby will have. As Instapundit said on the topic, "not until rich celebrities and government officials fly commercial".
Update: What happens when our government, in an attempt to "do something", chooses the wrong "solution" to the so-called problem? Here's a state-by-state breakdown of potential costs of the proposed Lieberman-Warner Climate Change legislation. It's not pretty.