Frank covers the environment, with an emphasis on its impact on real people.

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Drilling is stopped after leaks develop along Mariner East pipeline. One is affecting Chester’s Marsh Creek Lake.

The Clean Air Council said the fluid contains bentonite clay and chemical additives that can “smother aquatic life.”

Philly mixed recycling in with trash to deal with backup, but city says it will catch up

City officials acknowledge that as Philly’s sidewalks became choked with trash and storms drenched the refuse with rain, streets department workers began commingling recycling and refuse.

Perseid meteor shower viewing will peak Tuesday night in Philly region

The best time to view the annual Perseid meteor shower this year is likely Monday and Tuesday nights.

Pennsylvania: Some parks are too crowded, please go to these instead

Some of the overcrowded parks are near Philadelphia; others are far afield.

How much rain from Isaias fell near you?

An Inquirer analysis of National Weather Service data found Wynnewood, in Montgomery County, received the highest amount of rain, 8.59 inches, among 247 locations across the region.

Residents return to flooded homes after Isaias; 676 closed until Thursday due to unsecured barge; 5-year-old Montco girl found dead

Downpours led to widespread flooding and numerous water rescues, with rainfall amounts of up to 8 inches reported.

The Vine Street bridge took a hit from a 100-ton barge, but is deemed OK

PennDOT officials hope to open the expressway ramp Thursday.

DRPA breaks ground on solar project to power PATCO trains

The Delaware River Port Authority says a new 22 megawatt solar project will provide more than half the total electricity consumption for its PATCO operations through 50,000 solar panels on parking canopies at rail stations and installations on bridges.

Isaias leaves destruction and thousands in Philly region without power: ‘The worst ... is yet to come’

The Schuylkill River at Philadelphia could approach historic levels on Wednesday as it crests above flood stage.

Mosquitoes arrive earlier, stay later in Philly region because of climate change, data suggest

Communities across the Philadelphia region are seeing more mosquito-friendly days, as they warm because of climate change, according to data compiled by Climate Central. Philly has gone from 153 such days in the 1980s to 163 now. Allentown has gone from 128 to 142.