"LOS NEGOCIADORES, SOBRE EL CLIMA EN COPENHAGUEN SIGUEN NEGOCIANDO CON CARAS DE PREOCUPACIÓN, LAS LINEAS DE FALLAS, Y POSTERIORES FIRMANTES".

"Negotiators at Climate, Talks

Face Deep Set of Fault Lines".

"Saudi Arabia, has spearheaded this argument, and while environmental groups and other stakeholders have dismissed the notion as a stunt, oil producers are not without the ability to muddle negotiations if push comes to shove".

"Meanwhile, developers of wind, solar and other renewable technologies anticipate a windfall if the community of nations, including mega-polluters like the United States, agree to a binding climate treaty. So, too, do global banks, which would presumably do handsomely through an expanded carbon trading market".

"Lobbyists from all sides will be wining and dining delegates, over the next two weeks".

"CARBON TAXERS VS. CARBON TRADERS".

"Many experts argue that the only way to tackle climate change is to put a price on carbon. Some say the best way to do that is to create a cap-and-trade system, in which industries are issued permits to emit carbon dioxide up to a certain level, or cap".

"Companies that emit below the cap can then sell their permits on a carbon market, where companies exceeding the cap will, presumably, buy them so they can continue to pollute. The total number of permits would not exceed an overall emissions target".

"Europe has had an emissions trading scheme since 2005. Some critics argue, however, that such systems are unnecessarily complicated and prone to manipulation. A simpler solution would be a tax on carbon, they say".

"But with a cap-and-trade scheme forming the bedrock of negotiations in Copenhagen, and among legislators in Congress seeking to pass national climate legislation, the carbon-tax camp has been increasingly marginalized".

"EMERGENCY VS. WE’LL FIGURE IT OUT".

"The idea that human beings are nudging the planet’s thermostat upward is widely accepted among climatologists. But just how rapidly things are changing, to what extent and where, and at what threshold, if any, should we abandon all hope, are far less settled questions".

"In 2008, the NASA scientist and global warming guru James Hansen, identified 350 parts per million as the upper limit for safe atmospheric carbon concentration. Current levels are approaching 390 parts per million".

"Others argue that there is no reason for panic, nor for what they say is an economy-crushing global climate treaty. They are putting their faith in human ingenuity, arguing that planetary-scale engineering projects like blasting seawater into the atmosphere to increase the heat reflectivity of certain clouds "yes, that’s a real idea", will eventually solve the problem".