Explore a critical 2011 AGU Fall Meeting press conference that delves into paleoclimate data suggesting potential rapid climate changes. Learn how NASA research indicates Earth could face drastic climate shifts this century, even if global warming is limited to two degrees Celsius above pre-industrial levels. Examine the discrepancies between climate models and paleoclimate data regarding climate system sensitivity. Discover how analysis of recent interglacial periods reveals we are approaching conditions that previously resulted in significantly higher sea levels. Gain insights from expert participants including James Hansen, Ken Caldeira, and Eelco Rohling as they discuss the implications of these findings for our understanding of climate change and its potential impacts.