Singapore practices a “commingled recycling system”: this means that all recyclable materials go into one bin and there is no need to sort or remove labels from recyclables. This system “avoids additional resources and the higher carbon footprint associated with the multiple...
Tinkerlab Turn empty water bottles into a dynamic water wall just in time for summer. Your little engineer can get hands-on, helping to mount the bottles at just the right angles to create drops and splashy turns for maximum water flow. Get the know-it-all deets from Rachelle atTinkerlab...
An online petition (请愿) with more than 312,000 signatures so far urges signers to mail their empty chip plastic bags to Walkers as an act of protest against the bags’ non-recyclable design. As petition organizer Geraint Ashcroft explained, the majority of chip packets, made from ...
4) Thermometers: mercury thermometer, mercurial sphygmomanometer 5) Paint: paint cans, nail polish, hair dye 6) Film: x-ray film, photo film 7) Poison: disinfectant, pesticide, rodenticide [Handle carefully with a package; empty contents of pressurized containers] 3.Household food waste: perishab...