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The CO2 problem in six easy steps (2022 Update)

Real Climate

Step 1: There is a natural greenhouse effect. This means that there is an upward surface flux of IR around (~398 W/m 2 ), while the outward flux at the top of the atmosphere (TOA) is roughly equivalent to the net solar radiation absorbed (~240 W/m 2 ). Step 2: Trace gases contribute to the natural greenhouse effect.

Radiation 316
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The definitive CO2/CH4 comparison post

Real Climate

So this is an attempt to put all of that in context and provide a hopefully comprehensive guide to how, when, and why to properly compare the two greenhouse gases. There is also a very small impact of the CH 4 oxidation to CO 2 itself for any fossil-fuel derived methane. (a) Historical comparisons. W/m 2 for CH 4.

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A distraction due to errors, misunderstanding and misguided Norwegian statistics

Real Climate

A friend asked me if a discussion paper published on Statistics Norway’s website, ‘ To what extent are temperature levels changing due to greenhouse gas emissions? ’, was purposely timed for the next climate summit ( COP28 ). See for instance Benestad (2016). I don’t know the answer to his question.

Sea Level 293
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Something Stinks: California Must End Manure Biomethane Accounting Gimmicks in its Low Carbon Fuel Standard

Union of Concerned Scientists

Under the LCFS each fuel pathway gets a unique carbon intensity (CI) based on a lifecycle analysis of the greenhouse gas emissions associated with the production and use of the fuel. This approach holds fuel producers accountable for reducing fossil fuel use and other global warming pollution in their supply chains.

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IPCC Climate Report: Six Key Findings for Water

Circle of Blue

Temperatures on this day in July 2016 exceeded 110 degrees Fahrenheit. Burning fossil fuels, cutting down forests, raising livestock, making cement, and using synthetic fertilizers are among the actions that have increased the amount of heat-trapping gases in the atmosphere to the point that the planet’s basic functions are coming undone.

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Why Energy Bills Will Be Even Higher This Winter

Union of Concerned Scientists

Our national overreliance on gas is evidently undermining energy access, not strengthening it, as some fossil fuel industry players would want you to believe. These claims just add to the deluge of greenwashing and disinformation from the fossil fuel industry. Don’t believe the industry spin.

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Environmental Groups Seek Investigation Into Enbridge Gas for False Advertising

Enviromental Defense

“Natural gas”, also known as methane gas or fracked fossil gas, is a potent greenhouse gas that pollutes the environment and causes climate change when it is burned and when it escapes into the atmosphere during extraction, production, and transportation. For a long time, fossil gas was the cheapest way to heat homes.

Cooling 61