All Questions

Like most people, we eat some meat, and the resulting bones need to be dealt with after the hens have finished cleaning them or they have been used for stock. I have been burying some bones but am ...

I'm looking for something a little bit better than your average bike in terms of transportation potential, but cannot be a license-required vehicle as I cannot get a driver's license. I also don't ...

My kids like seaweed snacks but there’s so much packaging. Alternatively I can buy crackers or raisins in large packages, lowering birth the cost and packaging (plus I’d the package is cardboard it’s ...

I just read this fascinating article on kernza, an alternative to wheat that is a perennial, rather than annual, crop. From the article, "Can This Breakfast Cereal Help Save The Planet?", this is ...

Is an air to water heat pump appropriate to keep a hot tub at temperature throughout the year (hot tub to run 24/7). Presumably if the efficiency is greater than 1 even at the lowest temperatures (say ...

I'm experimenting with optimal cotton growing techniques using the least amount of water required and plan on growing a cotton plant in simulated field conditions. That said, I need a large enough ...

Discussing charging my electric car with a colleague recently I argued that since (in Ireland) our renewable energy sources are mainly wind and hydro, since I charge my car at night the mixture of ...

For a while now I would like to plant sunflowers in my garden that actually give seeds. After some visits in some department stores and looking online I realized most sunflowers nowadays are for ...

I'm expecting tons of wood chips to be dropped off in part of my yard every day this year, and am wondering what I need to do so the arborist can easily drop them off as close to where I want them as ...

Much to my dismay, my apartment building recently canceled their recycling program. My household generates a fair amount of waste aluminum cans that we were previously sending to the local recycling ...

Currently my house has a natural gas-burning hot water heater, with a 40 gallon (150 liter) tank. Given the vintage, the efficiency of this heater is likely around 80%. A new, drop-in replacement ...

How do you decontaminate land that has been contaminated with various toxic materials? Is it safe to just unearth everything? I live around a lot of contaminated fields and it looks like companies ...

Examples: CO2e emitted, harm to the ecosystem, resources depleted, cost to the economy, etc. Context: I have a piece of clothing that is broken that I want to get rid of, and I want to know if it's ...

I've seen that Joel Salatin feeds his pigs grain on pasture, can I just cut out the high expenses, and feed them woodchips in place of grains?

1.1The purpose of the hydro-power system: I want to build a small hydro-power system which is capable of charging one USB power bank. I will be the power source by pumping water up with different ...

I've seen plenty of one-time calculations dedicated to one specific thing (usually plastic vs metal straws, or reusable vs disposable cups) but don't know of any organizations or even blogs that ...

So I have a small solar setup (100w/200ah) in my camper van. I left the controller/panel/batteries hooked up thinking I would occasionally clear the snow and there would let the sun topped the ...

When LDPE Type 4 plastic used in plastic wrapping is recycled, what is it used for?

I'm going to be putting down about 2,000 yards of wood chips on a garden (to kill off all the plants there) in an area on the edge of a swamp this year, and am wondering if it would be just as ...

What percentage of LDPE Type 4 plastic that you hand in to be recycled is in fact recycled into something useful? I ask this because I read that China stopped accepting plastic to be recycled ...

When discussing with a colleague about ecology yesterday, we had agreed on the following premise : Before industrial age, world population was low, and the environment was not significantly damaged ...

I recently saw an article that said that LEDs can use electricity to produce light or they can turn light into electricity. If this is true, could the excess light that we have coming into our homes ...

I recently purchased a home in Wisconsin, USA, and in the process of making repairs and upgrades I find I'm generating a fair amount of scrap lumber each month. I keep whatever I think I'll be able to ...

I live in the United States and I have a non-working Kidde ionization smoke detector. I've read that these smoke detectors should be recycled because they contain some radioactive material. However, ...

There has been some confusion here related to measurement of amounts of wood. There are at least the following units of wood measurement: loose cubic meter of wood stack cubic meter of wood solid ...

Wildfires are getting more and more common due to dryer and hotter summer seasons. I'm interested in the impact of wildfires in terms of CO2 contribution in the atmosphere. I'd like to get a gross ...

I'm planning an extension to my home and one of the many decisions is whether to go for a standard concrete slab over hardcore, or limecrete over blown glass with concrete strip foundations (e.g. ...

I've seen a lot of stuff saying researchers predict we'll run low on fossil fuels in 2050 and that pollution will be a big problem then. Does this mean that life will suck then? What would things be ...

It seems like people have been hyping the benefits of vehicle-to-grid (V2G) for decades. The basic premise of V2G is that electric vehicles, when plugged in to the grid to charge, can offer services ...

Just want to know is it safe to use expired can goods for compost making, examples: Diced tomatoe,evaporated milk,turkey gravy,different Campbell soups,can pumpkin,coffee

One idea frequently cited as a way of reducing pollution is the use of scrappage schemes and low-emission zones to persuade people to replace their old cars with newer, 'more efficient' ones. IMHO ...

I am interested in building my first Aquaponics system in the livingroom of a 70m2 apartment. I plan to have a 100 litre fish tank with a 75litre grow bed. I measured the temperature to be about 15-25 ...

I answered to a question and used the term "marginal energy". The answer wasn't understood by all, so I'm going to expand on the term to illustrate how it works. So, what is marginal energy?

I'm currently researching and experimenting a system concept about hydropower-based fintness. I recorded my initial experiment footage and you can watch the video on Youtube. Befor talking about this ...

I have a 2018 Ram Promaster city cargo van with OEM 12v 70AH 120RC Sealed Led acid battery and a 160a alternator. Sitting on top of the battery I have a 1200 Watt pure sine 100v inverter connected ...

Are there any HFC-free air conditioners on the market? How about refrigerators? Given the massive warming potential of HFCs I would expect there to be more information on how to avoid HFCs and on what ...

Our groupmates have a research topic that includes making a plastic pellet. We have to think of an alternative way to produce plastic pellets out of melted HDPE plastic bags since we're still students ...

I am looking for specific studies on the life cycle of cloth diaper versus disposable diaper. The municipality I work for wants to establish a compensation program for parents who want to choose a ...

According to this Wikipedia article (Dutch) there is a rule of thumb that the energy output of a solar system is 850 to 1000 kWh per year per Wp. However, this takes the grey climate of the ...

I do not have time to do a good job composting so the "Food Cycler Platinum Indoor Food Recycler" seems like a good idea despite its price. Does it release CO2 or methane? Does it consume so much ...

My local municipality has a "Waste Watchers" program that provides resources for reducing the quantity of waste sent to landfills. One of their tips is to use cloth napkins instead of paper napkins. ...

How would you rank the following in terms of damage to the environment: Pencils (regular) Mechanical Pencils Single-use ball point pens. Refillable ball point pens. Fountain pens The eco-friendly ...

I just came across the concept of STES - Seasonal Thermal Energy Storage and more specifically BTES - Borehole Thermal Energy Storage. (Example project) I wondered if anyone had built a small scale ...

I was reading about wake models. However it is unclear to me how they are used to model wind turbines. Could anybody explain me what are wake models and why it is important to predict wakes in wind ...

What level of light intensity (lumens) do you need across a solar panel in order to obtain an incident-light to energy-output efficiency of 15%?

So I've recently gotten into foraging and found a site called eattheinvaders.org that encourages people to eat invasive species. One of the most invasive species here in California is the common ...

For a building that is centrally heated by local fuel combustion (i.e. heating within the building rather than district heating), one may distribute the heat throughout the building using as a energy ...

Referring to hydro electricity generation, a lot of what we produce is wasted as the buyer buys only the minimum generation. What would be the appropriate measure to use that excess energy? Is ...

I just came across a school project to build a hanging compost bin: Lakeview Compost Bin. The benefits of composting have been a frequent topic here, but I'm wondering what purpose is served by ...

So many of our products have stickers/tape on them, i.e. boxes, glass and plastic. I have been removing stickers/tape from boxes (except amazons recyclable tape) but do I need to be doing this for ...