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In just days, lockdown provides vivid picture of how environment recovers without people

Breaking News EmailsGet breaking news alerts and special reports. The news and stories that matter, delivered weekday mornings.SUBSCRIBEMarch 18, 2020, 1:09 PM UTC / Updated March 19, 2020, 5:55 PM UTCBy Denise ChowIn Venice, the often murky canals recently began to get clearer, with fish visible in the water below. Italy's efforts to limit the coronavirus meant an absence of boat traffic on the city's famous waterways. And the changes happened quickly.Countries that have been under stringent lockdowns to stop the spread of the coronavirus have experienced an unintended benefit. The outbreak has, at least in part, contributed to a noticeable drop in pollution and greenhouse gas emissions in some countries.Although grim, it's something sc ...