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Arthur T Knackerbracket has processed the following story:
The rate at which ice is disappearing across the planet is speeding up, according to new research.
[...] The figures have been published today (Monday, 25 January) by a research team which is the first to carry out a survey of global ice loss using satellite data.
The team, led by the University of Leeds, found that the rate of ice loss from the Earth has increased markedly within the past three decades, from 0.8 trillion tons per year in the 1990s to 1.3 trillion tons per year by 2017.
Ice melt across the globe raises sea levels, increases the risk of flooding to coastal communities, and threatens to wipe out natural habitats which wildlife depend on.
[...] Lead author Dr. Thomas Slater, a Research Fellow at Leeds' Centre for Polar Observation and Modelling , said: "Although every region we studied lost ice, losses from the Antarctic and Greenland ice sheets have accelerated the most.
[...] The increase in ice loss has been triggered by warming of the atmosphere and oceans, which have warmed by 0.26°C and 0.12°C per decade since the 1980, respectively. The majority of all ice loss was driven by atmospheric melting (68 %), with the remaining losses (32%) being driven by oceanic melting.
[...] Just over half (58 %) of the ice loss was from the northern hemisphere, and the remainder (42 %) was from the southern hemisphere.
Journal Reference:
Slater, Thomas, Lawrence, Isobel R., Otosaka, Inès N., et al. Review article: Earth's ice imbalance [open], The Cryosphere (DOI: https://doi.org/10.5194/tc-15-233-2021)
(Score: 2) by fakefuck39 on Thursday January 28 2021, @04:47AM (6 children)
>floating ice that's melting. That doesn't affect sea levels
this is false. you know why? because the ice is floating... I'll let you think about that. Still no idea? Let me explain.
salt molar mass: 60g
water molar mass: 20g
salt water molar mass: between those two numbers. think about that.. Still no idea?
salt water is heavier than regular water. That means the frozen iceberg floats higher than it would. melting it adds more space in the water than it displaced in the water while frozen. Think of it this way: the melting is making the water less dense. Take some silly string and unload the whole can into someone's face. How did all that volume fit into the tiny can? Because it was more dense. by making it less dense for the same weight in the can, you've expanded its volume.
Now by how much will it expand the oceans? I dunno, go google it if you care - I don't.
>It is mostly the floating ice that's melting
Oh look, some random retard on the internet says NASA is wrong. I actually don't know if "most" of the ice melting is on land or sea. What I do know, is a shitload of land ice is melting. Because NASA told me so. But you have your theories too, which clearly don't come from science. Tell me, did you drink any hand sanitizer last year? Maybe a Clorox enema or two?
https://climate.nasa.gov/vital-signs/ice-sheets/ [nasa.gov]
Tell me iceboy, what happens to the seawater fish when that water's not as salty anymore? They die and we find a new source of food to feed 8 billion people? And the hundreds of millions of people who live by the coast - they just lose everything they have worked for, and buy some more land in the newly habitable areas and build new houses? Entire islands full of people - we just relocate those to newly warm Alaska?
It's not a bad thing for humanity as a surviving species. It's one of the worst things that can happen to a person and a family - skyrocketing food prices after losing everything they have.
(Score: 0, Informative) by Anonymous Coward on Thursday January 28 2021, @08:06AM (5 children)
Not bad, for a 14-year old boy, pretending to be all growed-up on the internet. But completely wrong, in all details.
(Score: 2) by fakefuck39 on Thursday January 28 2021, @10:29AM (2 children)
really? I thought 14yo boys were the ones who argue by saying "nuh-huh, you're wrong" and providing no details or any information at all. Have you taken reading class yet? Seems all the scientists got all the details wrong too, since you say so.
https://nsidc.org/news/newsroom/20050801_floatingice.html [nsidc.org]
(Score: 1, Touché) by Anonymous Coward on Thursday January 28 2021, @01:53PM (1 child)
For the supposed grown up in the room, every time I see you post you're being an insulting, instigative twat.
(Score: 2) by fakefuck39 on Thursday January 28 2021, @07:31PM
Correct. I'm here to get my kicks by laughing at people like you. *gasp* the guy on the receiving end of the insult thinks I'm being insulting. Yeah skippy. That's the point - to be insulting to dumb social rejects. You're my personal clown.
(Score: 2) by hendrikboom on Friday January 29 2021, @09:17PM (1 child)
Indeed. Ice is less dense than water. That's why it floats.
(Score: 0) by Anonymous Coward on Sunday January 31 2021, @06:40PM
He has a very slight point. If you melt freshwater ice and spread it evenly over the saltwater, the level will be very slightly higher than when the ice was floating. The volume of the freshwater is more than the volume of saltwater that the weight of ice would displace.
With mixing the difference is small enough to be irrelevant.