- U.S., Canada have lost 3 billion birds since 1970. Scientists say "nature is unraveling." https://www.nbcnews.com/mach/science/u-s-canada-have-lost-3-billion-birds-scientists-say-ncna1055961 89 comments environment
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- Climate change could trigger a global food crisis, new U.N. report says https://www.nbcnews.com/mach/news/climate-change-could-trigger-global-food-crisis-new-u-n-ncna1040236 119 comments
- Do airplane contrails add to climate change? Yes, and the problem is about to get worse. https://www.nbcnews.com/mach/science/do-airplane-contrails-add-climate-change-yes-problem-about-get-ncna1034521 52 comments
- 1 million species under threat of extinction because of humans, biodiversity report finds https://www.nbcnews.com/mach/science/1-million-species-under-threat-extinction-because-humans-report-finds-ncna1002046 6 comments
- Christmas Bird Count | Audubon https://www.audubon.org/conservation/science/christmas-bird-count 0 comments
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