Changing the world's oceans to increase their uptake of…

We know little of the consequences of the geoengineering process, such as spraying particles into the atmosphere that shade the planet from the sun's…

— Graciela Chichilnisky

Geoengineering means changing the Earth's fundamental large-scale processes.

— Graciela Chichilnisky

The role of geo-engineering should, in a world of responsibility, in a world of scientifically enlightened decision making and ecological understanding, it should be…

— Vandana Shiva

As for geoengineering, there have been serious general critiques that I think cannot be ignored, like Clive Hamilton's, along with many positive assessments. It…

— Noam Chomsky

“I'm not denying other forms of damage to the climate... I'm simply saying we can't have a legitimate discussion about climate anything from any…

— Dane Wigington

CO2 from air can replace petroleum: it can produce plastics and acetate, it can produce carbon fibers that replace metals and clean hydrocarbons, such…

— Graciela Chichilnisky

Even if we planted a tree on every square yard available in the planet by the end of the century we would only capture…

— Graciela Chichilnisky

We are still learning how exactly the Earth reacts to increased CO2 and other greenhouse gases. We know it leads to warming seas which…

— Graciela Chichilnisky

We have to remove the CO2 that the industrial economy has already emitted, which otherwise will remain in the atmosphere for hundreds of years…

— Graciela Chichilnisky

We have used the majority of our carbon budget and we are already at dangerous levels of CO2 concentrations, about 400 parts per million.…

— Graciela Chichilnisky

The pace of global warming is accelerating and the scale of the impact is devastating. The time for action is limited - we are…

— Eliot Spitzer

European carmakers pledged to reduce CO2 emissions by 25 percent from 1995 to 2008. We kept our word and reduced the value even more.…

— Norbert Reithofer

There is still zero empirical evidence that anthropogenic production of CO2 is making any measurable contribution to the world's present warming trend.

— Alexander Cockburn

Each year we pump at least six billion tons of heat-trapping carbon into the innermost layer of our atmosphere, whose outer extent is only…

— Ross Gelbspan

Local and state governments have outrun the federal government. The EPA has served notice that it will enact a rule requiring CO2 reductions by…

— Al Gore