All Questions

I need to lower the temperature on my concrete roof ,I already painted in white but also I need something more permanent and able to walk on it . I am thinking to build a wood deck and since it is ...

I thought the idea of LED is, that the light bulb has a very long life and uses very little electricity. I have not invested in full LED lighting but tried the LED bulbs, you screw in your normal ...

I have heard that employees who work in organizations or buildings with a focus on sustainability are more likely to make more sustainable choices in their personal lives and homes. For instance, if ...

When it comes to quick and temporary labeling of bins and storage things, a strip of tape written on can be very useful. Painters tape, masking tape, duct tape are all occasionally used for this ...

Carbon emission trading is supposed to use market mechanisms to make carbon-intense processes less attractive. Unfortunately, the EU market is flooded with emission certificates, such that the ...

I am looking to calculate the CO2 emission of an average male human while arguing/debating. It is my understanding that the amount of CO2 emitted will be based on the respiratory rate of any given ...

I started to write a comment under the question Is there an efficient way to dispose of credit cards? about the dangers of burning PVC, because this can lead to dangerous chlorine compounds in the ...

I have about 10 credit cards which I ended up not using for various reasons and I feel bad for having to throw them away in the trash, this is the case for many other things, but seems quite ...

I’m asking a simple question I just need awsers and all the solar eclipses were caused by the moons so what if we just reversed it with all the technology that we have.

I'm trying to determine if investing in a couple of Tesla Powerwall units to store solar energy is a wise financial decision. My energy cost is $0.1649/kWh. The installed price of the two Powerwall ...

How to combat air pollution due to stubble burning by farmers in the National Capital Region (New Delhi) in India.

I was talking to some friends and one of them claims that it is more efficient to combat global warming by cutting the trees and replanting them because a growing forest consumes more CO2. (Firstly, a ...

We all know IKEA is known for affordable, stylish, and easy-to-assemble home goods. I've furnished my apartment with several products but was recently questioning if I should continue to purchase to ...

A research done in my city's main train station showed 400,000 UFP particles per cubic centimetre. I am looking into printing pamphlets and wanted to inquire how does spending half an hour in a 400,...

I have been cycling my new aquaponics system for three days with water from my 77 gallon fish tank.On the 3rd morning I found a white build up forming on the top of some of the clay pellets. What is ...

Is there any significant impact on leasing vs buying (or even a shortish buying/selling cycle) for cars? Assuming your car isn't trashed, you can sell it to someone who can get years more out of it, ...

While shopping for bath tissue at the store today I saw Seventh Generation brand with this information on the label: Seventh Generation 100% recycled bath tissue minimum 50% post-consumer recycled ...

I am new in Germany, and I am failing in recycling, thus I couldn't help but posting here, asking for help, let me know if this is off-topic! My bottles are: Plastic bottle of orange juice Glass ...

Is it possible to subject plant leaves to bacterial digestion to harness methane production therefrom. Is so what are the limitations.

Looking briefly at the recent IPCC report it presents a number of pathways for keeping global warming below 1.5 degrees celsius by 2100. These follow a spectrum from enormous reductions in consumption ...

I will soon be moving into a new home with a very old electric clothes dryer. I expect that before too long it will fail and need replacing. I would like to replace this with a more efficient model. I ...

I work in a few schools where children have been taught to turn off the monitors to save energy. Unfortunately, this is all that they turn off. Every Monday morning I find 30+ computers running with ...

Whenever oil booms, wind booms too. Whenever oil production crashes wind crashes too. The US added about 5GW or 2 million barrels of oil equivalent this year of wind and 300 million barrels of oil in ...

This may sound like a weird question, but the other night I was about to throw away a plastic package which didn't have any recycling information on it, and I hesitated before throwing it in the waste ...

Is it more efficient to heat a bedroom with whole house's forced-air natural-gas burning furnace, or only an electric space heater in the bedroom? For a very location-specific application, electric ...

Are there any published academic studies which compare per-capita carbon footprint against discretionary carbon footprint (ie. lifestyle-connected emissions)? per-capita footprint is the result of ...

Big hydro has several environmental disadvantages In the Wikipedia article on hydroelectricity, the disadvantages are listed as: Ecosystem damage and loss of land Water loss by evaporation ...

Empty plastic bottles are often dumped carelessly without being flattened but the cap on. I assume no human can flatten such a 1.5l bottle (see example image), but can a garbage truck? I want to ...

The recent IPCC SR15 Report has garnered a lot of press coverage because it warns that we must dramatically reduce CO2 emissions by the year 2030, less than 12 years away. Global net anthropogenic ...

The Water Abundance X-Prize was recently awarded to the Skysource/Skywater alliance for: ... developing an easily deployable high-volume water generator that can be used in any climate, meeting the ...

Does anyone know anything about Dominion Energy's solar standby charge (in Virginia) ? All I can find about it is generic information such as "Dominion plans to charge $4.19 per kilowatt for a solar ...

I'm currently learning how to train and use neural networks, as I've heard getting into this field would be worthwhile from the people at https://80000hours.org/ Is there any application of this ...

So I bought this handy and mobile solar charger for my cell phone. I wonder if it's a sustainable buy and looking for a report or similar that compares the production cost(carbon dioxide and resources)...

Consider a bed or a chair, one made of wood, another of plastic, another of metal. All else being kept similar between the materials to the extent feasible, is the wood product generally the most ...

The closely related Are there types of solar panels that can be made completely locally and independent of fossil fuels? Suggests that it is possible to make solar cells without fossil fuels. I ...

Let's say I have the option to send my food scraps to either a composting site, or a biogas digester. Both are industrial scale, following best practices. The output from each is high quality and ...

Human activities cause about 10% of total co2 emissions. However, humans cultivate about half of the earths land surface. These plants potentially cause photosynthesis and lower atmospheric co2. Do ...

In know this will vary by soil and growing season. But say you have a 4-6 month growing season and there is farming in the area so soil must be OK. A small green house for like lettuce and herbs. ...

I am looking to get into beekeeping. I have a plot of land ~20x50m that I would like to put some hives on. There are multiple nearby fields with horses - minimum distance ~ 50m to nearest such field. ...

How can ceramics be recycled? Does the answer vary greatly depending on glaze or other factors, and if so, how can those factors be determined (i.e. how can I tell if a glaze contains lead or not)? ...

What can and cannot be sent to an incinerator plant (Virginia) for producing electricity from heat? Can there be anything other than plastics, metals, and paper products in the bin?

How can I easily tell which plastics are Biodegradable and which are not?

I am wondering if foam netting sleeves that are often used to protect glass bottles in transport (see picture) can be recycled in a soft plastic stream? (like RedCycle in Australia)

Food waste is a big problem in the U.S. and (presumably) many other parts of the world as well. From Scientific American: According to the U.S. Department of Agriculture’s Food Loss Project, we ...

I have a friend who has made a very nice mobile Tiny House. The reports I've read on the prices of these make them pretty dear. In many places for zoning reasons they have to still be nominally ...

According to "E = A * r * H * PR" global formula to estimate energy generated, the solar irradiance value is needed. I have Horizontal irradiance, Tilted irradiance, and Normal irradiance values but ...

I've noticed that most thermally efficient constructions limit the use of windows due to glass' low R-value. According to this, one is forced to choose between well-lit spaces or thermally efficient ...

I live in a city that doesn't have composting facilities that ordinary citizens like myself could easily use. Although I recycle most of the plastic, metal, glass and paper I lay my hands on, getting ...

I'm a software engineer, and lately I've been thinking whether it's possible to delineate the environmental impact of a software product - say a web service, a website, an app for your phone, etc. It ...

I am wondering about a specific carbon footprint comparison (i.e. total global warming potential per litre) between soy milk and cow's milk. This would of course depend on where and how they are ...