Tony Heller on Greenland's Mass Balance
Greenland's Contribution to Sea Level Rise Since 1992 In 2019, Tony Heller posted on his blog that "Over the past three years, Greenland’s surface has gained 1.2 trillion tons of new ice... Experts in the press corps have generously interpreted the data for us, and determined that there is a climate emergency and it is President Trump’s fault." He then showed graphs supporting that Greenland's surface mass balance (SMB) did indeed gain ice each of those years, totaling 1.2 trillion tons of ice. What Heller doesn't tell you is that Greenland's SMB gains ice pretty much every year, but it also loses ice every year due to glacial calving and basal melting; this is referred to as discharge (D). In order to assess whether Greenland gained or lost ice, what is referred to as total mass balance (TMB) you have to account for both SMB and D. The equation for this is not that hard: TMB = SMB + D Heller was capable of looking up the value for SMB but neglected to look u...