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The only thing that will really change global warming in the long run is if we radically increase the speed with which we get alternative technologies to deal with climate change.

If you ask what you are going to do about global warming, the only rational answer is to change the way in which we do transportation, energy production, agriculture and a good deal of manufacturing. The problem originates in human activity in the form of the production of goods.

Preventing global warming from becoming a planetary catastrophe may take something even more drastic than renewable energy, superefficient urban design, and global carbon taxes.

Global warming is a fact. Now it's up to liberals to make it a reality. Hence there is crucial importance in preventing powerful, greedy free market forces from getting in the way of worsening storms and rising sea levels. The Kyoto Accord is a good first step.

Scientists have been warning about global warming for decades. It's too late to stop it now, but we can lessen its severity and impacts.

To be clear, geoengineering won't solve global warming. It's not a 'techno-fix.' It would be enormously risky and almost certainly lead to troubling unforeseen consequences.

Climate change is a terrible problem, and it absolutely needs to be solved. It deserves to be a huge priority.

Climate change is a global problem. The planet is warming because of the growing level of greenhouse gas emissions from human activity. If this trend continues, truly catastrophic consequences are likely to ensue from rising sea levels, to reduced water availability, to more heat waves and fires.