Some inconvenient polar bear facts supported by scientific literature

polarbearscience

The evidence that polar bears have not been harmed by recent declines in sea ice is contained in the scientific literature, no matter what some researchers say when they talk to the media.

USGS w_polarbearscience_caption 2016

Here’s a few of those facts (not all, by any means), with the references to back them up:

  • Southern Beaufort bear numbers did not fall in the mid-2000s due to global warming or summer sea ice loss but because of thick spring sea ice conditions that were as bad as a similar event that occurred in 1974-1976 – a fact that’s well documented in the scientific literature (Amstrup et al. 1986; Bromaghin et al. 2015; Burns et al. 1975; Lentfer 1976; Harwood et al. 2000, 2012; Pilfold et al. 2015; Smith 1987; Stirling 2002; Stirling and Lunn 1997; Stirling et al. 1980, 1982). See this post:Biggest threat to polar bears reconsidered [especially the appendix]
  • Recent loss…

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