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  2. How do I recycle Kidde brand smoke detectors?

    sustainability.stackexchange.com/questions/7167

    Confirm that your smoke detector is eligible for Kidde's disposal program. You'll need to gather the details below and contact Kidde Product Support (gpccsproductsupport2 [at] kiddeus.com or 800-880-6788) for them to confirm eligibility: The brand of smoke detector, which must be Kidde, Firex, Fyrnetics, or Edwards.

  3. What are the environmental effects of discarding radioactive...

    sustainability.stackexchange.com/questions/512

    Disposing of old smoke alarms. When your smoke alarm fails, you can put it out in your normal rubbish disposal. On average, a cubic metre of New Zealand soil is about as radioactive as 13 smoke alarms. Disposing of smoke alarms in a landfill doesn’t really change the landfill’s overall radioactivity.

  4. Biomass: Digestor/Reactor vs Gasifier Efficiency

    sustainability.stackexchange.com/questions/9773/biomass-digestor-reactor-vs...

    5. When using biomass for energy, two popular options are reactors and gasifiers. The first uses anaerobic micro organisms to convert the biomass to fertilizer and a methane rich gas mixture. The second uses heat to pyrolyze the biomass into ash and a carbon monoxide and hyrdogen rich gas mixture. In terms of the overall potential energy ...

  5. carbon footprint - Sustainable Living Stack Exchange

    sustainability.stackexchange.com/questions/10198/what-is-the-difference-in-co2...

    Internal combustion engines usually use hydrocarbon fuels. Hydro = hydrogen, carbon = carbon. Thus, the produced oxides are the oxide of hydrogen (H 2 O) which is water, and the fully oxidized oxide of carbon (CO 2) which is carbon dioxide. Of these, water vapor is a greenhouse gas but in equilibrium with oceans, so adding a little won't hurt.

  6. Are EVs actually worse for ambient air quality than cars with ...

    sustainability.stackexchange.com/questions/12365/are-evs-actually-worse-for...

    However, if you somehow think that carbon dioxide is not a waste but tyres are, then maybe, maybe not. The second most prominent gaseous pollutant a gasoline combustion engine car produces according to Euro 6 is carbon monoxide. At most 1 gram of it can be produced per kilometer. So in 300 000 km, that's 300 kg. But that's the absolute maximum.

  7. waste - Plastic incineration vs discarding considerations -...

    sustainability.stackexchange.com/questions/8290/plastic-incineration-vs...

    Burning trash in an uncontrolled fire is very polluting, with high levels of carbon monoxide, particulates, and dioxin/furan. These are released at ground level where they are easily breathed in by the person burning it, as well as neighbors. It's illegal virtually everywhere in the U.S.

  8. recycling - How can I recycle a disposable lighter? - Sustainable...

    sustainability.stackexchange.com/questions/5046

    For the body, Bic uses polyacetal homopolymer resin, which Dupont brand named Delrin. It is recyclable in some municipal and county recycling systems. You should probably check. Other lighter manufacturers may use other plastics. Without doing a chemical analysis of several brand's flint-like igniter elements, it is difficult to recommend ...

  9. life cycle analysis - How to determine whether hybrid cars are...

    sustainability.stackexchange.com/questions/10

    @gettit The reason I say this is b/c producing meat and dairy animals releases methane gas into the atmosphere and methane is exponentially more potent green house gas than carbon monoxide. Therefore the drivers would have to put a great number of miles on their cars for the MPD to become more sustainable than the VHD. –

  10. transport - What is required to make air travel sustainable ...

    sustainability.stackexchange.com/questions/4489/what-is-required-to-make-air...

    Carbon capture (CC) to offset or create synthetic fuels seems poised to replace fossil fuels that are otherwise difficult to replace. In the plans I've read in the last few months, that seems to be the general idea for air travel. CC from the air is being developed. E.g. Climeworks (Zurich, Switzerland), Carbon Engineering (BC, Canada).

  11. home - What is the minimum indoor CO2 concentration that is...

    sustainability.stackexchange.com/questions/8315/what-is-the-minimum-indoor-co2...

    Carbon monoxide and radon are two others that readily come to mind. The outside environment is a giant dumping ground where all of these toxins can be diluted to the point of harmlessness (we hope - at least until we dump so much of them that they become a problem, like we've done with CO2).