Through its impacts on the climate, CO2 presents a danger to public health and welfare, and thus qualifies as an air pollutant

Every part of the Earth's climate system has continued warming since 1998, with 2015 shattering temperature records.

There is long-term correlation between CO2 and global temperature; other effects are short-term.

All the indicators show that global warming is still happening.

If every nation agrees to limit CO2 emissions, we can achieve significant cuts on a global scale.

There are multiple lines of direct observations that humans are causing global warming.

Negative impacts of global warming on agriculture, health & environment far outweigh any positives.

Models successfully reproduce temperatures since 1900 globally, by land, in the air and the ocean.

The effects of enhanced CO2 on terrestrial plants are variable and complex and dependent on numerous factors

97% of climate experts agree humans are causing global warming.

A number of investigations have cleared scientists of any wrongdoing in the media-hyped email incident.

No known natural forcing fits the fingerprints of observed warming except anthropogenic greenhouse gases.

Recent studies agree that recent global temperatures are unprecedented in the last 1000 years.

There are many lines of evidence indicating global warming is unequivocal.

The benefits of a price on carbon outweigh the costs several times over.

Al Gore's book is quite accurate, and far more accurate than contrarian books.

Early 20th century warming is due to several causes, including rising CO2.

1934 was one of the hottest years in the US, not globally.

In the last 35 years of global warming, sun and climate have been going in opposite directions

Satellites measure Antarctica losing land ice at an accelerating rate.

There is increasing evidence that hurricanes are getting stronger due to global warming.

A variety of different measurements find steadily rising sea levels over the past century.

Greenland on the whole is losing ice, as confirmed by satellite measurement.

Thick Arctic sea ice is undergoing a rapid retreat.

Global warming will cause mass extinctions of species that cannot adapt on short time scales.

Multiple sets of independent observations find a human fingerprint on climate change.

Global temperature is still rising and 2010 was the hottest recorded.

A large amount of warming is delayed, and if we don’t act now we could pass tipping points.

Internal variability can only account for small amounts of warming and cooling over periods of decades, and scientific studies have consistently shown that it cannot account for the global warming over the past century.

CO2 limits won't cool the planet, but they can make the difference between continued accelerating global warming to catastrophic levels vs. slowing and eventually stopping the warming at hopefully safe levels.

El Nino has no trend and so is not responsible for the trend of global warming.

Net positive feedback is confirmed by many different lines of evidence.