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Power ratings -- choose level VI Take a look at any external power supply (EPS) you have lying around -- you should notice, along with all the regulatory markings, a roman numeral I through VI in a circle. Here are four that I just dug up in my house: These indicate energy efficiency standards for EPS starting with the California Energy Commission in 2004 (...


6

The Umweltbundesamt (sort of German EPA, I figure) recently released a new study on the "Ecologisation of online shopping" - which obviously is in German. Anyway, core findings are that individual shopping using your own car is the worst (CO2-wise) with 600 to 1100 g CO2 (for a 5 km ride to the store), while delivery is better due to optimized ...


5

What you should consider when trying to refresh the waterrepellency of your garment is how the garment is constructed / was waterproofed originally and which materials were used. There are different types of waterproof garments: modern outdoor clothing: Their ability to repel water comes from both a membrane system and a external waterproofing. The membrane ...


5

The Short Answer Burning 1 kg of wood releases 1.6 kg of CO2. (source: EPA) I'm not sure how big your 2-3 logs are, so I'll just say that 5 kg wood is probably enough to make a reasonable outdoor fire for one evening of entertainment. That would emit 8 kg CO2, or 17.6 lbs in one evening. For comparison, the global average of CO2 emissions per capita (per-...


4

There is something called Reversible inhibition of sperm under guidance (RISUG, see Wikipedia page for more details) which is alternative to a condom which is 100% eco friendly. In short, it a one time operation that "sterilize" the sperm, making it uncapable of reaching the egg or impregnating it. Sadly, it's available only in India at this point, ...


4

Today i had about an 2 hour long conversation with the local park ranger. He assured me that all measures are made to make sure that the environmental impact is kept to a minimum. But he also said that there was a limit to what they could do, their budget only covers about 80% of what is needed to keep everything going on a year to year basis and they are ...


3

Your shower water is already going into the same waste pipe that sewage from the toilet or septic system empties into. I think if you have a lot of soap you might end up with soap suds or scum inside the tank of the toilet, but I don't think that it would hurt the waste infrastructure in any way.


3

I'm not sure what P2P protocol was used and if results for BitTorrent would be the same, but in this study they calculated a decrease of 24-48% in the system-wide carbon footprint of online video streaming when using P2P compared to Content Delivery Networks. The paper describes that this is mainly because of selecting close by peers to share content from ...


2

Return them to a retailer that does 'cylinder swaps' According to Soda Stream's website, the appropriate place to return them is to a retailer that participates in their 'canister swap' program: If you are no longer going to use your SodaStream, you can return your empty carbonating cylinder(s) to one of your local retailers (without exchanging it for a ...


2

Actually, all packaging materials can be recycled in the following way: Burn it to energy, releasing carbon dioxide and preferably using that energy to create electricity or district heating (or ideally both in combined heat and power generation) Let a tree grow in a forest, capturing the released carbon dioxide Chop down the tree Manufacture more of the ...


2

Typical apple scent is not that bad: while not completely free of hazard or health concerns, ethyl isovalerate is considered "best in class" by US Environment Protection Agency. In particular, it's much better than ethyl formate, another popular cheap artificial scent (lemon), which is known to be absorbed by the lungs and skin and hydrolyze to ...


1

By installing a white noise generating app do you intend to keep the phone connected to the mobile/cellar telephone network & thus continually use phone bandwidth 24/7? I would have thought a digital recording of white noise played on a continuous loop would be more sustainable. It is possible to purchase white noise generating machines. I see some are ...


1

According to this article in Environmental Science & Technology (2020) the least GHG intensive process would be online shopping with fulfillment via physical store delivery: We found that shopping via bricks and clicks (click and fulfillment via physical store delivery) most likely decreases the GHG footprints when substituting traditional shopping, ...


1

Make that stuff out of PVC and other plastics that sink. Yes, we should be sequestering petroleum-based products like plastics, but there are nicer ways to go about it than letting it sink to the bottom of the ocean. Animals live on the ocean floor, even in the deep recesses of the Mariana Trench, so any plastic finding its way down there is more likely to ...


1

The environmental impact potentials were evaluated based on the metal contents and masses of the drives and environmental impact characterization factors used in life cycle impact assessments. The SSD had 86% to 94% lower resource depletion potentials than the HDD, due primarily to the lower contents of Au, Cu, Pd, Ru, and Pt, whereas the SSD had 33% higher ...


1

It's possible to make a composting toilet out of very simple parts, and those can work very well. But you need a supply of sawdust, woodchips or some other dry organic material. My brief experiment with dried grass was not successful although I've read that it can work. There are lots of places on the web where people document their experiments: The problem ...


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