Permafrost is ground that remains frozen year after year. This article in the New York Times predicts that Alaska's permafrost could be gone by 2050. Bloomberg reports that he thawing permafrost has buckled segments of the Alaska Highway, the key artery connecting the state with Canada and the northwestern U.S.
The Guardian reports that last month was the third-hottest June in recorded history, despite the La Nina cycle which should have depressed temperatures. The information comes from the U.S. National Oceanographic and Atmospheric Administration (NOAA). The Guardian article notes,
The figures also cement estimations that warming is now at levels not seen for 115,000 years, and leave some experts with little hope for limiting warming to 1.5C or even 2C.
By congressional mandate, scientists from multiple federal agencies prepare a National Climate Assessment every four years. A final draft report completed this year concludes that Americans are feeling the effects of climate change right now. The report received little attention until it was just published in the New York Times. Scientists leaked the draft out of concern that the Trump administration might try to suppress it.
Here is a quote from the New York Times article reporting on the climate assessment report:
The report concludes that even if humans immediately stopped emitting greenhouse gases into the atmosphere, the world would still feel at least an additional 0.50 degrees Fahrenheit (0.30 degrees Celsius) of warming over this century compared with today. The projected actual rise, scientists say, will be as much as 2 degrees Celsius.