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  2. Polycarbonate - Wikipedia

    en.wikipedia.org/wiki/Polycarbonate

    Polycarbonate sheeting in a greenhouse The second largest consumer of polycarbonates is the construction industry, e.g. for domelights, flat or curved glazing, roofing sheets and sound walls . Polycarbonates are used to create materials used in buildings that must be durable but light.

  3. Low-density polyethylene - Wikipedia

    en.wikipedia.org/wiki/Low-density_polyethylene

    Production of these trace gases from virgin plastics increases with surface area and with time, so that LDPE emits greenhouse gases at a more unsustainable rate than other plastics. In a test at the end of 212 days' incubation, emissions recorded were 5.8 nmol g −1 d −1 of methane, 14.5 nmol g −1 d −1 of ethylene, 3.9 nmol g −1 d −1 ...

  4. Plasticulture - Wikipedia

    en.wikipedia.org/wiki/Plasticulture

    The area of greenhouse cover is still increasing at a fast rate, during the last decade it is estimated that it has been growing by 20% every year. Areas such as the Middle East and Africa are growing in their use of plastic greenhouses by 15-20% per year, compared to the weak growth in more developed and economically stable areas such as Europe.

  5. Polytunnel - Wikipedia

    en.wikipedia.org/wiki/Polytunnel

    Beyond season extension, polytunnels are also used to allow cold-hardy crops to overwinter in regions where their hardiness is not quite strong enough for them to survive outdoors. Temperature increases of only 5 to 15 °C (9 to 27 °F) above outdoor ambient, coupled with protection from the drying effect of wind , are enough to let selected ...

  6. Walmart exec warns customers Trump’s tariffs could mean ...

    www.aol.com/finance/walmart-exec-warns-customers...

    A Walmart spokesperson told Fortune that any price changes are speculative at this point, but future tariff-induced cost increases would be an additional burden to already price-sensitive shoppers.

  7. High-performance plastics - Wikipedia

    en.wikipedia.org/wiki/High-performance_plastics

    High performance plastics are relatively expensive: The price per kilogram may be between $5 and $100 . The average value is slightly less than 15 US-Dollar/kg. [ 5 ] High-performance plastics are thus about 3 to 20 times as expensive as engineering plastics. [ 2 ]

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