The Greenland ice sheet owes its existence to the growth of an arc of islands in Southeast Asia—stretching from Sumatra to New Guinea—over the last 15 million years, a new study claims.
Earth Sciences
Sep 24, 2020
1
295
Economists frequently try to estimate the societal cost of releasing carbon dioxide into the atmosphere, but few of their projections go beyond the year 2100—far short of the millennia it takes for the climate changes from ...
Environment
Sep 10, 2020
34
2138
At least twice in Earth's history, nearly the entire planet was encased in a sheet of snow and ice. These dramatic "Snowball Earth" events occurred in quick succession, somewhere around 700 million years ago, and evidence ...
Earth Sciences
Jul 28, 2020
16
2881
Evidence of minute amounts of marine life in an ancient Antarctic ice sheet helps explain a longstanding puzzle of why rising carbon dioxide (CO₂) levels stalled for hundreds of years as Earth warmed from the last ice age.
Earth Sciences
Jul 7, 2020
0
43
A new study has highlighted the crucial role that sea ice across the Southern Ocean played in controlling atmospheric carbon dioxide levels during times of past climate change, and could provide a critical resource for developing ...
Earth Sciences
Jun 22, 2020
10
280
During past glacial periods the earth was about 6ºC colder and the Northern hemisphere continents were covered by ice sheets up to 4 kilometers thick. However, the earth would not have been so cold, nor the ice sheets so ...
Earth Sciences
Feb 18, 2020
0
7
A crater in western Australia was formed by a meteor strike more than 2.2 billion years ago and is the world's oldest known impact site, new research published Wednesday shows.
Earth Sciences
Jan 21, 2020
0
7081
Ancient air samples from one of Antarctica's snowiest ice core sites may add a new molecule to the record of changes to Earth's atmosphere over the past century and a half, since the Industrial Revolution began burning fossil ...
Earth Sciences
Dec 13, 2019
0
6
Since leaders first started talking about tackling the problem of climate change, the world has spewed more heat-trapping gases, gotten hotter and suffered hundreds of extreme weather disasters. Fires have burned, ice has ...
Environment
Dec 1, 2019
11
143
Two million-year old ice from Antarctica recently uncovered by a team of researchers provides a clearer picture into the connections between greenhouse gases and climate in ancient times and will help scientists understand ...
Earth Sciences
Oct 30, 2019
56
4173
