sea level rise

Tag archives for sea level rise

First Known Climate Change Extinction

When the sea levels rose following the last major glaciation, most rapidly between around 18,000 and 10,000 years ago, somewhat less rapidly until about 6,000 years ago, a lot of interesting things happened. I used to live, and do archaeology in, New England (the one in the US). It was always fun to contemplate George’s…

Sea levels are going to rise The amount of carbon dioxide in the Earth’s atmosphere directly and indirectly determines the sea level. The more CO2 the higher the sea level. The details matter, the mechanism is complex, and as CO2 levels change, it takes an unknown amount of time for the sea level to catch…

New Research On The Rising Sea

Human caused greenhouse gas pollution has locked us into a situation where the global sea level will rise, at an unknown rate, high enough to inundate most major coastal cities and vast areas of agricultural land in low lying countries, and wipe out thousands of islands. Entire countries (small, low lying ones, and pacific ocean…

There is a new study by a French/English team looking at the rate at which Antarctic glaciers might contribute to sea level rise, due to global warming, between now and 2100 and 2200 AD. The study produces several estimates, but suggests that glaciers in Antartica might contribute as much as 30 cm by 2100 and…

A recent study that is getting a lot of press suggests that the massive ice sheets of Antarctica are on average growing rather than shrinking, and thus, not contributing to sea level rise. (The authors of the study warn that this will reverse in the near future with global warming.) However, there is reason to…

I don’t care that the director or CEO of an advocacy organization concerned with poverty is an active academic. Indeed, my view of active academics is that many are largely incompetent in areas of life other than their specialized field. If that. So really, if you told me there is this great advocacy organization out…

I did an interview with JD Goodwin at at Blue Streak Science. It is here. Great science podcast, check out their other items. Here is the interview on iTunes.

What is not new Ultimately sea levels will rise several feet, given the present levels of CO2 in the atmosphere. We already knew this by examining paleo data, and finding periods in the past with similar surface temperatures and/or similar atmospheric CO2 levels as today. I put a graphic from a paper by Gavin Foster…

A large portion of the glacial mass in Antarctic, previously thought to be relatively stable, is now understood to be destablizing. This is new research just out in Science. The abstract is pretty clear: Growing evidence has demonstrated the importance of ice shelf buttressing on the inland grounded ice, especially if it is resting on…

Global Warming: Getting worse

I recently noted that there are reasons to think that the effects of human caused climate change are coming on faster than previously expected. Since I wrote that (in late January) even more evidence has come along, so I thought it was time for an update. First a bit of perspective. Scientists have known for…