Scientists have once again set up a mock Arctic base camp to educate world leaders about man-made global warming at the World Economic Forum in Davos, Switzerland.

Climate scientists hope their mock camp illustrates how global warming could impact the Arctic, but the “Gore effect” may make it harder to get the message across. Davos has seen frigid temperatures along with about six feet of snow in the last six days.

The Basecamp @ArcticDavos is open for business: a unique opportunity to meet climate scientists, see them at work, learn why the #ArcticMatters for climate https://t.co/WfZGA6d4uw We can’t be late to find the solutions https://t.co/mAvEiLA23j #2020dontbelate #WEF18 pic.twitter.com/jq0cM6mvbm

— UN Climate Change (@UNFCCC) January 23, 2018

There was so much snow, authorities evacuated some neighborhoods due to avalanche concerns, CNBC reported. Global elites headed to the conference had to force their way through heavy snow drifts.

CNBC reported that “heavy snow had already blocked the rail line through the Alps from Zurich, and villages along the route were at the highest level of avalanche alert.” Davos visitors were forced off trains and onto “a half-hour bus trip on back roads around the blockage and then loading them onto a crowded red commuter train that ran the rest of the way into Davos.”

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The camp was first set up by climate scientists, including those from the British Antarctic Survey, at Davos in 2017 to “convey that long-term negative changes in the Arctic pose serious socio-economic risks to the rest of the world,” according to a January 2017 World Economic Forum blog post.