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Sea levels could rise by 30ft, study warns

January 20, 2017 | Comment icon 32 comments



The Earth's oceans are continuing to warm up. Image Credit: CC BY-SA 2.0 Phillip Capper
Scientists have warned that global sea levels could continue to rise over the coming decades.
According to new research published in the journal Science, ocean temperatures are now the same as they were over 100,000 years ago - a time when sea levels were 30ft higher than they are today.

Unlike today however, the rise in temperature during this period was thought to have been caused by a shift in the planet's tilt which increased global temperatures by an average of around 2C.
By analyzing marine sediment core records from this time, scientists are hoping to learn more about how the rising temperatures we see today will impact global sea levels in the future.

"We are rapidly approaching ocean conditions that haven't been really seen on this planet for over 120,000 years," said paleoclimatologist Jeremy Hoffman from the Science Museum of Virginia.

"That's a very relevant thing as we head into the next couple decades, and we start making policy decisions to turn this train around."

Source: LA Times | Comments (32)



Recent comments on this story
Comment icon #23 Posted by docyabut2 5 years ago
Comment icon #24 Posted by RefealN 5 years ago
What's pragmatic steps should take to cope with this?
Comment icon #25 Posted by DanL 5 years ago
All RIGHT!!! Beachfront property for ME!! Where I live was once on a shore of a huge inland sea that divided North America. Just think, maybe my Grand Kids will be able be at the beach here again. The Guadalupe Mountains in West Texas and Southern New Mexico are actually not mountains. They are a fossil reef. Since nothing can ever be just natural I guess we would have to blame that global warming on Dinosaur farts. LOL, I remember not that many decades ago when we were told that we were heading into another ice age because of the air pollution. Our smog was keeping the sun from warming us p... [More]
Comment icon #26 Posted by Doug1029 5 years ago
The minor dip in temps that occurred in the late 1960s only lasted about six years. In climatology, 30 years is the minimum duration before we start predicting climate changes. About that time there was a published article on the Milankovitch Cycles that contained an arithmetic mistake: someone really did multiply two times two and get eight. And that got by the reviewers. So the author miscalculated the length of the average interglacial and decided we were due for another ice age. The journal printed a correction, but the popular press finds corrections boring, especially when they can... [More]
Comment icon #27 Posted by Doug1029 5 years ago
Switch to wind. The US could be nearly there by 2030. And we could do it with private money if we could get the politicians out of our pockets. By 2030 good batteries should be available for cars and we could start switching transportation over to wind. Somebody is sure to ask: what if the wind isn't blowing? Somewhere in North America, the wind is always blowing, especially around here. That's one reason we need a new grid system (Not to mention that the old one is wearing out). Move power from where the wind is blowing to where it is needed. By next year, Oklahoma wind will be power... [More]
Comment icon #28 Posted by Doug1029 5 years ago
I didn't know this yesterday: Tesla is building a huge plant in Nevada to make batteries for its new electric cars, of which they expect to be selling hundreds of thousands before 2020. The batteries are about the size of a C-cell, but much more powerful. They said they could produce batteries "faster than a machine gun can fire bullets." This will be one of the largest manufacturing plants in the world. Doug
Comment icon #29 Posted by Odin11 5 years ago
I don't get this mentality of the people invested in coal and oil. If we look back at the people who literally built America, Vanderbilt, Rockefeller, Carnegie, they all have something in common. They started out in one thing and switched over to another and became the richest men in America and the world. Vanderbilt built a fleet of shipping boats, then sold them all when he saw that railroads would be the new way of shipping and put all his money into railroads. Rockefeller built his oil monopoly then when Edison and Tesla had their "War of Currents" he fought them with his own propaganda u... [More]
Comment icon #30 Posted by Von Bismarck 5 years ago
The video illustrates a sealevel riseof approximately 60-70 meters.
Comment icon #31 Posted by Doug1029 5 years ago
I don't know. It seems short-sighted of them not to diversify. Nexterra is already using a wind/gas mix - they're an ENERGY company, not a coal or a gas or an oil or a wind company. And MR. BIG OIL - T. Boone Pickens - owns a couple wind farms. The people who sell you wind power are going to be mostly the same ones who now sell you coal or oil power. Rather than trying to put them out of business, we should seek ways to work with them. The animosity between preservationists and lumbermen got started when Teddy Roosevelt made a surprise hostile speech at a lumbering convention. That set th... [More]
Comment icon #32 Posted by DieChecker 5 years ago
I think that is very true. The big Energy companies of the future will be the big Oil companies now. Kind of like the millions of small mom and pop video stores that popped everywhere in the 1980s, and then by the late 1990s, nothing but BlockBuster and Hollywood Video. Everyone else was gone. The big will always end up buying out the small.


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