9
votes
2answers
493 views

Are electric cars beneficial to the environment compared to low consumption modern cars?

Imagine an electric car in a country where most energy come from coal (which i believe is the dirtiest). Add this to the pollution that disposing the batteries will create, or the carbon footprint ...
25
votes
2answers
768 views

Which baby diaper is more Earth-friendly — cloth or disposable?

We have a lot of friends who use cloth diapers, and I've heard some say that cloth diapers are actually more un-ecologically friendly than disposable diapers. I have a hard time buying that. I can ...
10
votes
2answers
460 views

Solar energy in place of conventional energy sources

The first time I came across these arguments against solar energy was in "Overload" by Arthur Hailey. Admittedly, this is fiction, but the arguments seems to have some merit. Using solar cells to ...
108
votes
3answers
11k views

Does a webpage with a black background save energy?

Blackle is a search engine that claims to save energy because it uses a black background. Is there any evidence to back up their claim that a website using a black background will save energy, and if ...
12
votes
1answer
268 views

Are CFLs always more ecologic than incandescent light bulbs?

Incandescent light bulbs are now being phased out in many countries. In practice, the replacements are mostly compact fluorescent lamps (CFL). In many cases, the energy savings created by CFLs justify ...
11
votes
1answer
322 views

Is the net output of CO₂ from Nuclear Energy lower than the net output of other energy sources?

While CO2 is not produced directly when producing electricity from nuclear power, it is obvious that obtaining the radioactive material and preparing it for its use in a plant inevitably produces some ...