Climate change is expanding Antarctica s sea ice, according to a scientific study in the journal Nature Geoscience.
The paradoxical phenomenon is thought to be caused by relatively cold plumes of fresh water derived from melting beneath the Antarctic ice shelves.
This melt water has a relatively low density, so it accumulates in the top layer of the ocean.
The cool surface waters then re-freeze more easily during Autumn and Winter.
This explains the observed peak in sea ice during these seasons, a team from the Royal Netherlands Meteorological Institute (KNMI) in De Bilt says in its
.
Climate scientists have been intrigued by observations that Antarctic sea ice shows a small but statistically significant expansion of about 1.9% per decade since 1985, while sea ice in the Arctic
SkS Analogy 22 - Energy SeaSaw
Tag Line
Elevator Statement
Energy change represents a change of the total global energy. Energy exchange represents an exchange of energy between two parts of the Earth’s systems, without necessarily increasing the total energy.
A seesaw exchanges the potential energy of Person A on one side of the seesaw to Person B on the other side of the seesaw. As Person A falls, they lose potential energy, causing Person B to rise, gaining the potential energy lost by Person A. In this process there is no change in the total energy of Person A+B: energy is merely exchanged between two people (there is a small amount of energy lost due to friction in the center pivot, requiring each person to push off the ground a small amount).
The news is packed with stories about threats to our planet, and we share that concern, says Dr. Jed Macosko, academic director of AcademicInfluence.com and professor of physics at Wake Forest University. It s why our team of academics, data scientists, and lovers of learning at AcademicInfluence.com connects readers to influential earth scientists and to enlightening content that offers ways to make a difference. Earth Day provides the perfect opportunity to engage people who share our concerns and who seek relevant answers to their questions.
Some of the famous names in earth sciences profiled or interviewed in the links above include Christopher Jackson, Robert Hazen, Naomi Oreskes, Michael E. Mann, Clive Oppenheimer, Richard Alley, Isabelle Daniel, Marcia McNutt, Julie Arblaster, and Jesse Ausubel. In addition, leading influencers covered in the climate change article include Willard Anthony Watts, Reese Palley, Drew Shindell, Lucia Liljegren, Sue Anschutz-Rodgers, Peter W
Arrests made as police target county lines networks
News • Apr 20, 2021 16:00 BST
[Officers on this morning s raids]
Officers investigating the exploitation of young and vulnerable individuals into county lines activity have carried out a series of early morning warrants on Tuesday, 20 April and arrested five people.
A total of eight addresses were targeted simultaneously across London, Hampshire and Berkshire. Three men and two women, aged between 20 and 40 years old, have been arrested on suspicion of offences including conspiracy to supply Class A drugs and modern slavery.
Searches of the addresses continue but officers have so far found a machete, Class B drugs and a rapier sword.
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