Wastewater Al
Gee and I have put on nearly 90 kg since 1961 I wish i could use the Glacial Diet and melt a bit away.
Wow. That means 26mm sea level rise since 1961. It translates to 0,45mm rise per year, or 0,45m rise per millenia. No doubt, it will lead to a global catastrophy.
The "outlines of glaciers were provided from satellite data" ... starting in 1961? All this sounds very scary, which is the whole point. One can't get grant money without it! Meanwhile, it's one inch; one MORE inch of rise in the trend. Sea level has been rising for 20,000 years. Did we expect it would stop?
Melting glaciers do not cause sea levels to rise as their mass does not alter. See Archimedes Principle.
9 trillion tons of glacier melt is a catastrophe! Translated into 1 inch of sea level rise over 58 years...not so much. @JenniferPage, melting glaciers DO cause sea level to rise. Melting icebergs, Arctic and Antarctic ocean ice pack and ice shelves floating in the ocean do not. That's the "Archimedes principle" that you are talking about. Glaciers and icebergs/ice pack/ice shelves are different things. This article is about glacier melt.
Recently scientists were poking around Ellesmere island and dug up 2 layers of peat, each about 20 ft. thick. probably 3 - 6 million years old. Although the island is at the top of Canada now, then it was situated around Yellowknife within the arctic circle and permafrost land. Yet the peat required an average temperature of +14 C. to survive. That is the same average temperature of Ottawa Canada. So the temperature of Ellesmere Island has been cooling for 3 - 6 million years. elsewhere, NASA has discovered 21 active volcanoes under the ice of Antartica last year. Despite that, the ice pack there has thickened this year. Over millennia, people have blindly followed political, social and religious self-appointed Chicken Littles while they fleeced our bank accounts. Our political leaders believe this carbon crap. It appears they got an expensive education to prepare themselves to lead us. I think their parents should demand their tuition money back.
" "We are currently losing a total of 335 billion tonnes of ice a year, corresponding to a rise in sea levels of almost 1 mm per year."
Yikes!! That is almost 4 inches per century. Imagine what damage that might cause when added to a 60 foot tsunami.
In truth, what is happening in the antarctic may be more significant and may remain mostly unknown. The article did show some measurement there, however, but it is a large place.
OK, here goes... Rumata, if you'd read even just the abstract of the paper in Nature, you'd know that the authors indicate that glacier mass loss has contributed 25 to 30% of observed sea level rise in the period. piperTom, was there something deficient about geographic measurement techniques in 1961? And the most recent equivalent sea level we can refer to is during the Sangamonian interglacial about 125k years ago, and it was about 8 m higher than today, so the grant money explanation doesn't really cut it. JenniferPage, see aksdad's comment, and maybe get an education before commenting. Grumpyrelic, your one proxy data point is infinitesimally small compared to the 450 observations of 19,130 glaciers used by the authors of the Nature paper. FFS, aren't NewAtlas readers even marginally scientifically literate?
I wonder if people are having trouble seeing the forest for the trees in this issue of global warming. Scientists have discovered the remains of forests that lived within both arctic circles on this planet that nobody attempts to explain. Further, many years ago a glacier about 5000 ft thick covered most of North America until it melted but nobody seemed to care when it did. I live in Ottawa, Canada. Earlier this year, climatologists assured us that we would have an "early" spring. These are the people, using Cray Computers that can't provide us with an accurate 24 hour forecast As I sit here typing away on the the computer on April 10, 2019, I look out the window at 2 feet of snow. We have had 148 days of snow on the ground this season. When my son was born 40 years ago this weekend, We picked flowers for his birthday. Thousands of data points taken on a few chunks of ice taken over less than 100 years is not enough time scale to forecast a 4 billion year old planet's weather future. Isn't funny that when we mine resources from the ground, it suddenly becomes polluting trash. If we spent more time managing the resources/trash issue instead of uselessly shaking our fists at the evil sun that melts our precious ice, we would be much better off.
Lamar Havard
Fill a glass full of ice and water to the rim and sit it on a table and see if it overflows as the ice melts...no it doesn't. And neither will the oceans rise as the planet's ice melts...and re-freezes, in the NORMAL cycle. If ice melts in the Arctic, it WILL increase in the Antarctic.