Mark Ruffalo Quotes

The great thing about cheap natural gas, again it's cheap, and it provides a cleaner alternative to coal. But it's still a fossil fuel, and because it's still a fossil fuel, it still emits carbon.

Some studies have shown that natural gas could, in fact, be worse for the climate than coal.

Climate change is due to the use of energy for industrial growth, which has been and is overwhelmingly based on fossil fuels.

Coal is a portable climate.

Natural gas is a dirty fossil fuel like the rest of them.

[Coal is] a 19th-century fuel very badly suited for the 21st century. There's no way you can wash or scrub coal to make that essential fact go away.

The key thing is to get off our reliance on fossil fuel.

Why would we build a thousand mile pipeline taking almost a million barrels of oil from the most carbon intensive fuel source on the planet when wind energy is a whole lot cheaper and a whole lot cleaner.

The climate is nearing tipping points. Changes are beginning to appear and there is a potential for explosive changes, effects that would be irreversible, if we do not rapidly slow fossil-fuel emissions over the next few decades.

The carbon dioxide concentration in the atmosphere is measured. It's uncontroversial. It's going up. We know that has a tendency to warm the atmosphere and we should be worried about that.

I believe, along with Pope Francis and almost all scientists, that climate change is threatening this planet in horrendous ways, and that we have to be aggressive in transforming our energy system away from fossil fuel and defeat the Keystone Pipeline.

If we do not get our act together and transform our energy system away from fossil fuel, there is a real question as to the quality of the planet that we are going to be leaving our children and our grandchildren.

Doom yourself to horrific climate change by burning all that carbon and releasing all that CO2. Or power down society, reducing total energy usage around the planet. One leads to ecological collapse. The other is a reversion, in many ways, to poverty.

Climate change is real, caused by human activity and already devastating our nation and planet. The United States must lead the world in combating climate change and transforming our energy system away from fossil fuels and toward energy efficiency and sustainability.

Natural gas is great for America in so many ways.

I have never met a geologist or leading scientist who believes adding more carbon dioxide to the atmosphere will have any significant effect on climate change.

There is an urgent need to stop subsidizing the fossil fuel industry, dramatically reduce wasted energy, and significantly shift our power supplies from oil, coal, and natural gas to wind, solar, geothermal, and other renewable energy sources.

Natural gas is a better transportation fuel than gasoline, so if that's the case, it's cheaper, it's cleaner and it's a domestic resource.

Natural gas is hemispheric. I like to call it hemispheric in nature because it is a product that we can find in our neighborhoods.

Tar sands oil is the dirtiest fuel on Earth. Because producing it consumes so much energy, a gallon of tar sands crude generates 17 percent more carbon pollution than conventional crude oil.

We need healthy forests if we want to protect our climate. As the climate changes, forests become more vulnerable to insect outbreaks, droughts and wildfires. Simultaneously, when our forests are destroyed, their carbon is released back into the atmosphere, further impacting climate change. It's a horrifying one-two punch.

Natural gas emits only half the carbon dioxide of coal when burned, but if methane leaks when oil companies extract it from the ground in a sloppy manner - methane is far more potent a greenhouse gas than carbon dioxide - it can wipe out all the advantages of natural gas over coal.

The downsides of fossil fuels, notably their geopolitical and environmental risks, are not fully reflected in their market prices.

I'm not disputing that increasing CO2 emissions in the atmosphere is going to have an impact. It'll have a warming impact.

In an agreement with China, President Obama has already pledged to reduce America's net greenhouse-gas emissions by more than 25% by 2025. In return, China has agreed to 'peak' its carbon-dioxide emissions in 2030.