How much has sea ice increased?
Following over 3 decades of gradual but uneven increases in sea ice coverage, the yearly average Antarctic sea ice extents reached a record high of 12.8 × 106 km2 in 2014, followed by a decline so precipitous that they reached their lowest value in the 40-y 1979–2018 satellite multichannel passive-microwave record.
How much is the sea level expected to rise in the next 100 years?
Based on their new scenarios, global sea level is very likely to rise at least 12 inches (0.3 meters) above 2000 levels by 2100 even on a low-emissions pathway. On future pathways with the highest greenhouse gas emissions, sea level rise could be as high as 8.2 feet (2.5 meters) above 2000 levels by 2100.
How can we stop sea ice from melting?
An engineer has devised a way to stop Arctic ice from melting by scattering millions of tiny glass beads to reflect sunlight away. Scientists have discovered that melting in Greenland and Antarctica is occurring much faster than they previously thought.
Is the sea ice in the Ross Sea increasing?
The growth of sea ice isn’t even, however. The region west of the Antarctic Peninsula, for instance, shows a large decline in sea ice. Conversely, in areas such as the Ross Sea, sea ice is increasing.
What was the extent of sea ice in 2016?
The ice then grew during the winter months and reached its annual maximum extent in March 2016, measuring 14.52 million square kilometers (5.61 million square miles). By September 2016, sea ice dropped to 4.14 million square kilometers (1.6 million square miles), the second lowest extent of the satellite era.
What was the 40 y record of sea ice?
A newly completed 40-y record of satellite observations is used to quantify changes in Antarctic sea ice coverage since the late 1970s. Sea ice spreads over vast areas and has major impacts on the rest of the climate system, reflecting solar radiation and restricting ocean/atmosphere exchanges.
Is the Arctic sea ice still below average?
This trapping of cold air in the polar latitudes has allowed record heat to dominate over colder temperatures for the first part of this year. But there is a catch to the increasing sea ice in the Arctic: the depth, or volume, of the ice this year is still below average.
