2 Matching Annotations
- Sep 2023
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macleans.ca macleans.ca
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A widely publicized study published last year by researchers at the University of Northern Arizona analyzed satellite images taken between 1985 and 2019. They show that large parts of the boreal forest have “browned” (i.e., died) in the south and greened with trees and shrubs in the north. If this shift, long hypothesized as a future outcome of warming, is already underway, the effects will be profound, transforming natural habitats, animal migration and human settlements.
- for: climate departure, biodiversity loss, extinction
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Cities across the country will begin to reach “climate departure”: a symbolic rubicon, after which a climate falls completely outside historical norms.
- for: climate departure, Camilo Mora, stats, stats - climate departure - canada, climate departure - montreal, climate departure - vancouver, climate departure - toronto
- paraphrase
- Cities across the country will begin to reach “climate departure”: a symbolic rubicon, after which a climate falls completely outside historical norms.
- Even the coldest year, going forward, will be hotter than the hottest in the past.
- The concept was defined in 2013 by researchers at the University of Hawai’i, who crunched computer models of 39 different planetary futures to arrive at their predictions.
- In a scenario consistent with roughly two degrees warming by mid-century,
- stats: start - Montreal is estimated to reach its departure point in 2072, - Toronto in 2074 and - Vancouver in 2083.
- stats: end
- comment
- the article doesn't mention two important points
- a number of places are expected to reach climate departure in the 2020's, such as
- Manokwari, Indonesia in 2020
- Lagos and Jakarta in 2029
- Even if we decarbonize at the most aggresive RCP pathway, it would not prevent climate departure, but only delay it by a few decades
- a number of places are expected to reach climate departure in the 2020's, such as
- The implications are profound. It means that the living organisms on most places on the planet will be on a path to extinction or migration. The entire biosphere will be in migration and this also has profound implications on human social and economic systems. Species whose livelihood billions of people depend on will be migrating to other parts of the environment, potentially devastating large swathes of local economies the world over.
- the article doesn't mention two important points
- Reference:
- climate departure global map (2013)
- Annotation of Dr. Camilo Mora's 2013 paper on climate departure:
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