Gravity...

 

Gravity is a force which tries to pull two objects toward each other. Anything which has mass also has a gravitational pull. The more massive an object is, the stronger its gravitational pull is. Earth's gravity is what keeps you on the ground and what causes objects to fall.

The remnants of Hurricane Ida, dropped more than half a foot of water on the region and gave New York City more rainfall.

It’s the exact sort of weather event that climate change promises to make more frequent: increasingly intense bursts of water in increasingly brief periods of time. And it’s one that the city’s infrastructure was not made to handle.

The MTA pumps 14 million gallons of water from subway stations daily, so days with heavy rain pose challenges.  

Of the MTA’s 665 miles of subway track, 418 are underground, which means they’re vulnerable to flooding.  When the drainage and sewer system are overwhelmed, it sends water flooding into the subway system.

  Just a thought.