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.
As we pump greenhouse gases into our atmosphere, the ocean absorbs carbon dioxide, making the seawater acidic and hostile for shellfish and corals.
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.
On some issues, Republicans and Democrats disagree so sharply that compromise is nearly impossible. Republicans are not going to support a cap-and-trade program to limit greenhouse gases, and Democrats won't support a 1,000-mile wall on the border with Mexico.
Neglecting clean energy sources such as solar, wind, and especially nuclear, can result in blackouts, increased power bills, and will take a heavy toll on our efforts to reduce greenhouse gases.
I stick to stuff I'm pretty sure of and I know this: when the price of a barrel of oil is under $80 a barrel and you build a pipeline, you are driving up greenhouse gases.
The safest way to ship bitumen is by rail. Now, there are other things that you get doing it that way. There's probably more greenhouse gases in shipping it by rail. I think certainly there are.
You could warm Mars up, over time, with greenhouse gases.
I've been vegan for 15 years, and it turns out it makes a very big impact on the environment to eat fewer animal products, which cause more greenhouse gases than all of transportation combined.
There is universal consensus among experts that the earth's atmosphere is heating up - and that we are responsible for it by putting carbon dioxide in the atmosphere. We also know that the consequences of global warming are catastrophic. But how do we make sure that all countries reduce greenhouse gases?
