Tree rings are one of the key tools in paleoclimate research, and might seem like nothing more than big, woody thermometers. But tree-ring science is ever evolving, constantly debated, and — while it has answered some major questions — still grapples with making the connection to broader climate questions.
I think I first learned of Rob DeConto when I saw his paper entitled Thresholds for Cenozoic bipolar glaciation, published soon after my arrival at Nature. Specific and testable thresholds for the initiation of large scale glaciation in Antarctica and the Northern Hemisphere? Interesting! Continue reading →
Jerry Mitrovica from Harvard University sits at the surprisingly wobbly interface between the solid Earth, oceans and ice. Trained in serious geophysics, Jerry quickly found a niche in explaining how movements of the Earth’s mantle – in three dimensions – control the apparent variation of past sea levels. In many cases, this means pointing out that many or all of our records of past sea level are fundamentally altered by processes like dynamic topography and isostatic rebound. Continue reading →
Tina van de Flierdt from the Department of Earth Science and Engineering at Imperial College London is an international leader in the use of geochemical proxies – particularly neodymium (Nd) – for reconstructing past ocean circulation, water masses and weathering. But her childhood and early interests pointed in a different direction. Continue reading →
Essentially from the start of her career, Amy Clement has been interested in the big ideas in atmospheric dynamics. But she’s also continually raised questions and proposed her own sometimes controversial ideas.
El Niño is fundamentally linked to atmosphere-ocean interactions? Maybe not. The Atlantic Meridional Overturning Circulation drives the Atlantic Multidecadal Oscillation? Again, maybe not. Continue reading →
Interesting stories and insights on life come tumbling out of Stefan Kröpelin — one of the foremost scientists working in the eastern Sahara — like snowflakes in a blizzard. Science is at the forefront of our conversation, but his worldview is literary: “It was never my intention to make, out of 100 books, the 101st.” Always, Stefan looks for the empty space and fresh opportunity, on the map and in science.