Denmark, the Netherlands and Germany have detailed plans to cut their greenhouse emissions by 20 to 50 percent.
Since stepping down as laboratory director in 1999, I have devoted an increasing fraction of my time to international issues. I am involved with energy, environment, and sustainability issues, particularly as they involve new energy sources free of greenhouse gases.
We have to create more and more vegetarians, and help people to understand that it is not only the suffering of the animals (which is what made me vegetarian) but also the incredible harm to the environment, the tremendous amount of greenhouse gas created by the whole vast machinery of intensive animal farming.
Those who deny human-caused climate change offer no compelling evidence to better explain the undeniable rise in atmospheric concentrations of greenhouse gases and global temperature.
Many governments are giving subsidies to fossil fuel production and consumption that encourage greenhouse gas emissions, at the same time as they are spending on projects to promote clean energy. This is a wasteful use of scarce budget resources.
One problem is that we are heavily dependent upon fossil fuels. And that's where the greenhouse gases come from, by and large, some deforestation, as well. But we have not yet come to grips with how to change that. So that's where we are right now.
China will soon emit more greenhouse gases than America, but its regime knows if it caps aspirations there will be a revolution.
A vegan riding a hummer contributes less to greenhouse gas emissions than a meat eater riding a bicycle.
If our goal in legislating against carbon releases is not simply punishing the West and its power companies but truly trying to reduce the accumulation of greenhouse gasses in the atmosphere, the main event will be in the developing world. We must use the smartest possible economics, and that means investing in China and India.
Who loves a garden loves a greenhouse too.
We have at most ten years—not ten years to decide upon action, but ten years to alter fundamentally the trajectory of global greenhouse emissions.
Recent warming coincides with rapid growth of human-made greenhouse gases. The observed rapid warming gives urgency to discussions about how to slow greenhouse gas emissions.
If Africa is left behind, she is going to continue pumping greenhouse gases into the atmosphere, especially carbon. She's going to continue logging the forests, she's going to continue burning charcoal, she is going to continue practicing agricultural activities that destroy the environment, and sooner or later Africa's problem will become a global problem.
You know what I always dreamed of? That with the greenhouse effect, one day Estonia can be what L. A. is right now. I always thought when the end of the world comes, I want to be in Estonia. I think then I'd survive.
I think when it comes to climate change, the single most important thing in the world is for the United States' Congress to pass an effective bill that will put a price in carbon because if it starts costing something to emit carbon, this will provide an incentive, people do act on the basis to some extent of economic incentives to emit fewer greenhouse gases.
Even if we were to stop putting out greenhouse gases right now, we'd still face decades of warming.
Global warming results not from the emission of greenhouse gases into the atmosphere, but from an unusually high level of solar radiation and a lengthy - almost throughout the last century - growth in its intensity.
We run enormous risks and we know what kind of reductions of greenhouse gases are necessary to drastically reduce risks. Reducing emissions by half by 2050 is roughly in the right ballpark. It would bring us below 550 ppm.
Many of our actions degrade our habitat because we undertake them in order to reach goals whose allure blinds us to myriad dire consequences. In order to fuel our complex civilizations, we are lacing our planet's atmosphere with carbon dioxide, a greenhouse gas that, if it has not already begun doing so, will soon warm the Ice Age climate to which we owe our very existence.
You could warm Mars up, over time, with greenhouse gases.
