New paper shows clouds are more important than CO2

Underestimating Clouds: A Climate Mistake We Cannot Afford

A new paper by physicists W. A. van Wijngaarden and William Happer, Radiation Transport in Clouds, suggests that clouds affect atmospheric temperature more than CO2, says Vijay Jayaray of the CO2 Coalition.

Carbon dioxide (CO₂) has been predominantly portrayed as the chief culprit driving global warming. For decades, this misconception has guided international policies, prompted ambitious targets for reducing CO₂ emissions and driven a shift from reliable and affordable energy resources like coal, oil, and natural gas toward problematic wind and solar sources.

However, this theory overlooks important factors that influence Earth’s climate system, including a critical variable in the climate system – the role of clouds, which remains woefully underestimated.

Recent work by physicists W. A. van Wijngaarden and William Happer challenges this prevailing paradigm: Their new paper, Radiation Transport in Clouds, suggest clouds affect atmospheric temperature more than CO₂ because they have a greater impact on the comparative amounts of solar energy entering Earth’s atmosphere and escaping to outer space.

The Overshadowed Influence of Clouds

Clouds simultaneously reflect incoming sunlight back to space (cooling the Earth) and trap outgoing heat (warming the Earth). This dual nature makes clouds both powerful and perplexing players in our climate system. The net effect of clouds on climate is a balance between these opposing influences, thus a central component of the Earth’s energy budget.

A recent study by van Wijngaarden and Happer, titled “Radiation Transport in Clouds,” delves into this complexity. The 2025 paper says the radiation effects of clouds can easily negate or amplify the impact of CO₂. The researchers highlight that clouds have a more pronounced effect on Earth’s radiation budget than greenhouse gases like CO₂.

For instance, their research reveals that a modest decrease in low cloud cover could significantly increase solar heating of the Earth’s surface. In comparison, a doubling of atmospheric CO₂ concentrations reduces radiation to space by a mere 1%: “Instantaneously doubling CO₂ concentrations, a 100% increase, only decreases radiation to space by about 1%. To increase solar heating of the Earth by a few percent, low cloud cover only needs to decrease by a few percent.”

This stark contrast highlights the disproportionate influence of cloud dynamics compared to CO₂ fluctuations. Most state-of-art climate models are still in their infancy. We need more accurate measurements of clouds’ properties and their influence on the electromagnetic components of solar radiation if they are to be useful inputs for climate models.

Implications for Energy Policy and Reliability

Current strategies assume a direct and dominant link between CO₂ emissions and global temperatures to justify aggressive “decarbonization” efforts and an increase in the use of solar and wind energy.

However, solar and wind are inherently intermittent, rendering them unreliable and very expensive as components of a power grid. The infrastructure required to support these technologies entails substantial upfront investments, higher operating costs and increasing utility bills for consumers.

Blackouts, energy shortages and price spikes are becoming increasingly common in regions that have prematurely decommissioned fossil fuel plants without adequate backup solutions. This trend disproportionately affects vulnerable populations, exacerbating energy poverty and hindering economic development.

The major justification for using solar and wind has been that they counter global warming by reducing CO₂ emissions from burning fossil fuels. If small variations in cloud cover actually overwhelm the effects of CO₂, then the climate’s sensitivity to greenhouse gases is being significantly overestimated. This has profound implications for policy.

Attributing global warming predominantly to CO₂ emissions from the use of fossil fuels is a gross oversimplification. While CO₂ undoubtedly has a warming effect, it is relatively modest and beneficial, mainly moderating the difference between daytime and nighttime temperatures. On the other hand, clouds, with their multifaceted interactions and feedbacks, represent a critical and underappreciated component of this puzzle.

The findings of van Wijngaarden and Happer highlight a broader issue within climate science: the tendency to oversimplify complex systems for the sake of political expediency. As the global energy landscape continues to evolve, it is imperative that decisions be based on sound science rather than political dogma.

The time has come to reassess our approach to both climate science and energy policy. The stakes are too high to continue down a path of destructive policies based on erroneous analyses. We must prioritize reliable, affordable energy sources and grid stability over useless reductions in emissions of a harmless gas.

Click here to access the entire Radiation Transport in Clouds paper.

This commentary was first published at BizPac Review on February 10, 2025

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Natural gas pipeline ownership spreads across 36 First Nations in B.C.

Published on June 14, 2025

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Chief David Jimmie is president of Stonlasec8 and Chief of Squiala First Nation in B.C. He also chairs the Western Indigenous Pipeline Group. Photo courtesy Western Indigenous Pipeline Group

From the Canadian Energy Centre

Stonlasec8 agreement is Canada’s first federal Indigenous loan guarantee

The first federally backed Indigenous loan guarantee paves the way for increased prosperity for 36 First Nations communities in British Columbia.

In May, Canada Development Investment Corporation (CDEV) announced a $400 million backstop for the consortium to jointly purchase 12.5 per cent ownership of Enbridge’s Westcoast natural gas pipeline system for $712 million.

In the works for two years, the deal redefines long-standing relationships around a pipeline that has been in operation for generations.

“For 65 years, there’s never been an opportunity or a conversation about participating in an asset that’s come through the territory,” said Chief David Jimmie of the Squiala First Nation near Vancouver, B.C.

“We now have an opportunity to have our Nation’s voices heard directly when we have concerns and our partners are willing to listen.”

Jimmie chairs the Stonlasec8 Indigenous Alliance, which represents the communities buying into the Enbridge system.

The name Stonlasec8 reflects the different regions represented in the agreement, he said.

The Westcoast pipeline stretches more than 2,900 kilometres from northeast B.C. near the Alberta border to the Canada-U.S. border near Bellingham, Wash., running through the middle of the province.

It delivers up to 3.6 billion cubic feet per day of natural gas throughout B.C. and the Lower Mainland, Alberta and the U.S. Pacific Northwest.

“While we see the benefits back to communities, we are still reminded of our responsibility to the land, air and water so it is important to think of reinvestment opportunities in alternative energy sources and how we can offset the carbon footprint,” Jimmie said.

He also chairs the Western Indigenous Pipeline Group (WIPG), a coalition of First Nations communities working in partnership with Pembina Pipeline to secure an ownership stake in the newly expanded Trans Mountain pipeline system.

There is overlap between the communities in the two groups, he said.

CDEV vice-president Sébastien Labelle said provincial models such as the Alberta Indigenous Opportunities Corporation (AIOC) and Ontario’s Indigenous Opportunities Financing Program helped bring the federal government’s version of the loan guarantee to life.

“It’s not a new idea. Alberta started it before us, and Ontario,” Labelle said.

“We hired some of the same advisors AIOC hired because we want to make sure we are aligned with the market. We didn’t want to start something completely new.”

Broadly, Jimmie said the Stonlasec8 agreement will provide sustained funding for investments like housing, infrastructure, environmental stewardship and cultural preservation. But it’s up to the individual communities how to spend the ongoing proceeds.

The long-term cash injections from owning equity stakes of major projects can provide benefits that traditional funding agreements with the federal government do not, he said.

Labelle said the goal is to ensure Indigenous communities benefit from projects on their traditional territories.

“There’s a lot of intangible, indirect things that I think are hugely important from an economic perspective,” he said.

“You are improving the relationship with pipeline companies, you are improving social license to do projects like this.”

Jimmie stressed the impact the collaborative atmosphere of the negotiations had on the success of the Stonlasec8 agreement.

“It takes true collaboration to reach a successful partnership, which doesn’t always happen. And from the Nation representation, the sophistication of the group was one of the best I’ve ever worked with.”

Alberta

Alberta Premier Danielle Smith Discusses Moving Energy Forward at the Global Energy Show in Calgary

Published on June 13, 2025

Todayville

From Energy Now

At the energy conference in Calgary, Alberta Premier Danielle Smith pressed the case for building infrastructure to move provincial products to international markets, via a transportation and energy corridor to British Columbia.

“The anchor tenant for this corridor must be a 42-inch pipeline, moving one million incremental barrels of oil to those global markets. And we can’t stop there,” she told the audience.

The premier reiterated her support for new pipelines north to Grays Bay in Nunavut, east to Churchill, Man., and potentially a new version of Energy East.

The discussion comes as Prime Minister Mark Carney and his government are assembling a list of major projects of national interest to fast-track for approval.

Carney has also pledged to establish a major project review office that would issue decisions within two years, instead of five.