join-the-philadelphia-city-nature-challenge 
Academy of Natural Sciences
APRIL 22, 2022
City Nature Challenge is back for 2022! The CNC is a friendly global competition where residents of more than 300 cities compete to see who can record the most wildlife. Observations made during the four days of the challenge can continue to be identified through May 8. Results are announced on May 9.
PA Environment Daily
APRIL 18, 2024
The Greater Erie City Nature Challenge is back for its third year, taking place from April 26 – 29, 2024 throughout Erie County. This 4-day international community science event challenges us to explore the biodiversity around us. Last year we collected over 2,000 observations with 488 species!”
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Academy of Natural Sciences
APRIL 27, 2021
Mark your calendars for City Nature Challenge 2021! The CNC is a friendly global competition where residents of more than 300 cities compete to see who can record the most wildlife. We hope you’ll join us here to explore and share the natural world during City Nature Challenge, and beyond!
Academy of Natural Sciences
AUGUST 11, 2021
Fall bird migration is underway, and millions of birds are beginning to reach Philadelphia as they head south for the winter, newly hatched young embarking on their first migration. Since the launch of Lights Out Philly in spring 2021, the Philadelphia community came together in a remarkable way to protect birds.
PA Environment Daily
AUGUST 11, 2021
Fall bird migration is underway and millions of birds are beginning to reach Philadelphia as they head south for the winter, newly hatched young embarking on their first migration. Since the launch of Lights Out Philly in spring 2021, the Philadelphia community came together in a remarkable way to protect birds.
PA Environment Daily
APRIL 25, 2023
Visit the Committee webpage for options on joining the meeting remotely. Room 205 Ryan Building starting at 10:00 a.m. DEP Climate Change Advisory Committee meeting. 16th Floor Delaware Room, Rachel Carson Building. Contact: Lindsay Byron, lbyron@pa.gov , (717) 772-8951.
Academy of Natural Sciences
FEBRUARY 27, 2023
From regional STEM-focused education to our Women In Natural Sciences program to Philadelphia’s local community garden scene, the Academy continues to find ways to be involved in unique, diverse communities who are as passionate about the natural world as we are.
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