在中国的西北部,沙漠条件保存了长城最偏远的部分。科学家们正在探索着2000年前的建筑材料,以寻找该地区过去气候的迹象。
paleoclimatology & paleoceanography
Swedish Icebreaker Is the First to Dig Into Greenland’s Remote Victoria Fjord
Data collected aboard Oden will shed light on the dynamics of the Greenland Ice Sheet.
Ancient Pines Could Reveal the Heat of Thousands of Past Seasons
A novel 3D CT scan approach unlocks temperature records preserved in the gnarled wood of bristlecone pines.
How Great was the “Great Oxidation Event”?
Geochemical sleuthing amid acid mine runoff suggests that scientists should rethink an isotope signal long taken to indicate low levels of atmospheric oxygen in Earth’s deep past.
Fossilized Shells Reveal the Seasonality of a Warmer Climate
Summers could warm faster than winters in northern Europe, paleoclimate research suggests.
Alexander Farnsworth: Finding Fact in Climate Fiction
A paleoclimatologist uses his modeling skills for both science and sci-fi.
Cosmic Rays Shed Light on Stone Age Timelines
Signatures of a long-ago solar storm, recorded in tree rings, helped researchers date a 7,400-year-old settlement in northern Greece.
Sedimentary Basins Tell Zealandia’s Ancient Story
New interpretations and mapping of all New Zealand’s offshore sedimentary basins offer clues about the evolution of Earth’s eighth continent.
The JOIDES Resolution Embarks on Its Final Expedition
On the ship’s last cruise, scientists will collect data to help predict future effects of climate change.
Drilling into Antarctica’s Past
The West Antarctic Ice Sheet melted rapidly around 8,000 years ago. Could that event foretell the future?