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  2. Acid rain - Wikipedia

    en.wikipedia.org/wiki/Acid_rain

    Effect of acid rain on statues Acid rain and weathering. Acid rain can damage buildings, historic monuments, and statues, especially those made of rocks, such as limestone and marble, that contain large amounts of calcium carbonate. Acids in the rain react with the calcium compounds in the stones to create gypsum, which then flakes off.

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  4. Urban runoff - Wikipedia

    en.wikipedia.org/wiki/Urban_runoff

    Such a project may stabilize the immediate area where flood damage occurred, but often it simply shifts the problem to an upstream or downstream segment of the stream. [17] See River engineering . There are many different ways that polluted urban runoff could harm humans, such as by contaminating drinking water, disrupting food sources and even ...

  5. Philadelphia weather: Rain finally falls after 42-day dry spell

    www.aol.com/philadelphia-weather-rain-finally...

    News. Science & Tech. Shopping. Sports. Weather. 24/7 Help. For premium support please call: 800-290-4726 more ways to reach us. ... Philadelphia weather: Rain finally falls after 42-day dry spell.

  6. Clean Air Act (United States) - Wikipedia

    en.wikipedia.org/wiki/Clean_Air_Act_(United_States)

    The Acid Rain Program (ARP) is an emissions trading program for power plants to control the pollutants that cause acid rain. [13] The 1990 CAA Amendments created a new title to address the issue of acid rain, and particularly nitrogen oxides (NO x ) and sulfur dioxide (SO 2 ) emissions from electric power plants powered by fossil fuels, and ...

  7. Philadelphia, PA Weather - Hourly Forecasts and Local ... - AOL

    www.aol.com/weather/forecast/us/philadelphia...

    Get the Philadelphia, PA local weather forecast by the hour and the next 10 days. ... CBS News 5 hours ago ... USA TODAY 9 hours ago Rain forecasts bring relief as California fires blaze, but ...

  8. Fallingwater - Wikipedia

    en.wikipedia.org/wiki/Fallingwater

    By the late 1980s, acid rain and freeze-and-thaw cycles had caused deterioration. [234] [235] The house was vulnerable to water damage because the site was always humid. [236] [237] Even though most of the leaks had been repaired, rain and snow still pooled on the terraces and roof, [238] [236] and water came in through the walls. [231]

  9. Philadelphia's snowless streak expected to continue as rain ...

    www.aol.com/news/philadelphias-snowless-streak...

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