Nearly 700 cities around the globe, including Philadelphia, are participating in the ninth annual City Nature Challenge, a four-day event that encourages people to document biodiversity and connect with nature. Then, scientists use those records to make informed decisions about conservation. KYW Newsradio's John McDevitt has more.

(Photo credit: Getty Images)

<p>Nearly 700 cities around the globe, including Philadelphia, are participating in the ninth annual <a href="https://www.citynaturechallenge.org/">City Nature Challenge</a>, a four-day event that encourages people to document biodiversity and connect with nature. Then, scientists use those records to make informed decisions about conservation. KYW Newsradio's John McDevitt has more.</p>
<p>(Photo credit: Getty Images)</p>

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