Richard Alley
Temperatures on Earth are increasing and the rise is drastically outpacing previous natural changes in the planet’s climate
Claim:
“We have been cooling down for the past 4000 years”; the Earth has cooled since the ‘medieval warming’, “It’s all about when you start the measurements”
Grist article on an “Ice Apocalypse” mostly accurate, but doesn’t make the likelihood of that apocalypse clear enough to readers
“The article has a bias, emphasizing the high end scenarios of ice sheet behavior, avoiding scrutiny of model assumptions. The concept of marine ice cliff instability and how unusual it is as a mechanism today on the vast coastline of Antarctica or Greenland is ignored.”
Analysis of "Flooding of Coast, Caused by Global Warming, Has Already Begun"
“The theory of sea-level rise and flood problems is pretty well understood — this makes the point that this theory is also happening now and can only be expected to get worse — sea levels have been rising on the US east coast for the last 150 years or more and even if current trends simply continue, impacts will continue to grow. As the article states, we actually expect a significant acceleration of sea-level rise in the coming decades meaning the impacts will grow more rapidly.”
Sea level could rise by as much as 1 or 2 meters (3.3-6.6 feet) by the year 2100
Claim:
Sea level rise could reach six or seven feet by the year 2100.