STEMxm Episode 25 –
Ocean Corals and Climate Change with Jessica Carilli, PhD
This is the 2nd episode in a series touching on climate change careers and research. Check out the others here:
Where Jessica earned a PhD – Scripps Institution of Oceanography
Stuff we discussed
— How are scientists able to “go back in time” to study how the environment was on earth many years ago?
- Ocean floor core sampling
- Tree rings as a way to understand the environment in years past (Dendrochronology) – This audio clip is an excellent explanation of how scientists use tree rings in combination other data to perform dating: listen here
- Ice corps from Greenland and Antarctica
- Corals also have annual layers they grow through time. You can use these similarly
- We also spoke with Dr. Holmes in episode 14 about core sampling!
How do scientists date this stuff? Radiometric clocks!
- How carbon dating works (must click through all pages)!
- Ice core sample dating works and what the heck is ferne?
- How do we date corals? More core sampling!
- Then what? X-rays and Cat-scans for corals
- Proxies of past ocean chemistry
- How does sediment runoff impact corals?
- Ocean acidification
- Saltwater Science Blog (no longer active)
- Jessica’s personal Blog
- Jessica’s Twitter