How Heat Pumps Work

Despite the climate crisis some places (like Canada) are still building houses with fossil fuel based heating systems, and this needs to change. Gas companies and their planet-killing kin have used regulatory capture to ensure their desire to change the climate continues. However, their best efforts to force customers to use dead dino juice people are turning away from old style furnace for new high tech heat pumps.

Heat pumps sound like magic since they somehow extract heat from cold winter air. Thankfully, the Guardian has put together a nice visualization of how heat pumps work. The gif above is not from their english language site.

Whereas gas boilers burn gas to produce heat, heat pumps do something more complicated. Sometimes described as working like a “fridge in reverse”, they use a mixture of evaporation and condensation to transfer heat from outside to inside a building. In a cold winter, it can be hard to understand how these devices work.

See how heat pumps work.

Engineered Stone Banned Down Under

AI generated image of energy efficient home

If you don’t work in one of the building trades then you might not know about engineered stone, but you have definitely seen it and probably touched it. It’s a type of stone made of crushed silica that is pressed together to make a new, and equally durable, stone (it’s like plywood made of stone). Many new builds use this type of modern manufactured stone for countertops and decorative surfaces. Australia has found that people working on this type of stone tend to develop health issues that can be life-ending, so the country has decided to ban the stone to protect those in the industry. This is a good thing to see and hopefully other countries will copy Australia’s new policy.

Trade unions, health organisations and personal injury law firms have all welcomed the ban, saying it will save lives.

“Engineered stone is a fashion product that is killing the workers who make it,” Australian Council of Trade Unions assistant secretary Liam O’Brien said.

“With alternatives readily available, why are we risking the lives of tradies for a fashionable finish in our kitchens?”

Dr Hoy said broader change was needed to make sure a similar crisis did not happen again.

“We can’t be waiting until people develop disease and they die from conditions related to work before we start acting,” he said.

“We really need to change the ways to identify problems at work, and act before people become sick.”

Read more.

Solar Retaining Wall Goes Live in Switzerland

solar retaining wall alongside a road

It might seem odd to put solar panels on the side of walls in a region with mountains, but that’s exactly what’s happening in Switzerland. One of the cantons in the country is looking to be powered by at least 40% renewables by 2035 (which is quite achievable); with terrain being scarce it’s hard to place large solar installations. However, retaining walls in some areas get a lot of sunlight depending on their orientations (south facing would generate more for example) and with geography like Switzerland’s there are a lot of retaining walls. The cantons of Appenzell Ausserhoden’s first installation generations 325kW which is the equivalent of 52 Swiss households.

The PV system was anchored on and in the masonry using an adhesive technique. An anchoring depth of a maximum of 90 mm could not be exceeded so that the retaining wall would not be adversely affected.

Due to the close proximity to the asphalt, the solar panels’ components are subject to exceptional corrosion requirements and are anodized for protection. Indirect components are made of aluminum – only the screw anchors are made of stainless steel.

Read more.

Canada Now Requires Companies to Disclose Who Benefits

Following similar legislation in other countries Canada has finally introduced a beneficial ownership requirement on Canadian companies. Federally registered companies will have to disclose who owns them, which means it’ll be harder to commit tax fraud. Plus, by having companies reveal who benefits from their existence it will be easier for authorities to track criminal behaviour and efforts around snow washing.

In 2017, an investigation by the Toronto Star and the Canadian Broadcasting Corporation, based on ICIJ’s Panama Papers dataset, revealed how Canada had emerged as a popular tax haven, touted by corporate service providers as a “reputable” destination to hide wealth.

Transparency advocates welcomed the landmark reforms, which passed into law on Nov. 2 under an amendment to the Canada Business Corporations Act, following a years-long push for a legislative means to tackle money laundering and tax evasion.

Read more.

USA to Clamp Down on Methane

When it comes to emissions from fuels methane is amongst the worst. The so-called natural gas is incredibly bad for the planet because it’s so effective at accelerating the greenhouse effect that is warming the Earth. Methane is an easy target as nations around the world are looking to reduce their greenhouse gas emissions because it’s so potent. Following that rationale, the USA has opted to better monitor methane emissions and police companies that are violating emission restrictions. America is one of the worst per capita emitters on the planet so this is a big step in the right direction.

“These are rules of the road,” said Ali Zaidi, the Biden administration’s national climate adviser. “There is no longer an excuse to let these emissions continue to proliferate. Industry has the tools. It has the workforce that’s excited to do this work. And it has every incentive to get after this challenge.”


The EPA also said the plan would prevent an estimated 58 million tons of methane emissions from 2024 to 2038, the equivalent of 1.5 billion metric tons of carbon dioxide, and will yield total net benefits of $97 billion to $98 billion from 2024 to 2038, after taking into account the costs of compliance and savings from recovered natural gas.

Read more.

Scroll To Top