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David Collin
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In the most recent Nature a letter reported an analysis of multiple studies of CO2 being emitted from thawing Arctic tundra. Their conclusion is that there is a net transfer of carbon from soil to the atmosphere. This suggests that this is a positive feedback loop with the potential to release large quantities of carbon into the atmosphere and increase warming.
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The Internet has increased conflict and ideological segregation between opposing views, granting a disproportionate amount of clout to the most extreme opinions.

"People who have long entertained right-wing populist ideas, but were never confident enough to voice them openly, are now in a position to connect to like-minded others online and use the internet as a megaphone for their opinions. They become more confident and vigorous, because they see that others share their beliefs. This is concerning, because we know from previous research that increased contact with people who share our views makes our previously held beliefs more extreme. It grants us new group identities that permit us to do things we deemed inconceivable before."

[...]

"The greater diversity and availability of digital content implies that people may choose to only consume content that matches their own worldviews. We choose who to follow and who to befriend. The resulting echo chambers tend to amplify and reinforce our existing opinions, which is dysfunctional for a healthy democratic discourse. And while social media platforms like Facebook and Twitter generally have the power to expose us to politically diverse opinions, research suggests that the filter bubbles they sometimes create are, in fact, exacerbated by the platforms’ personalization algorithms, which are based on our social networks and our previously expressed ideas.

This means that instead of creating an ideal type of a digitally mediated “public agora”, which would allow citizens to voice their concerns and share their hopes, the internet has actually increased conflict and ideological segregation between opposing views, granting a disproportionate amount of clout to the most extreme opinions."

https://www.weforum.org/agenda/2016/08/the-biggest-threat-to-democracy-your-social-media-feed

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True love.... It's a beautiful thing 
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