Lines in the Sand

Sea-Level Rising: Looking to the Future

Sea-Level Rising: Looking to the Future

By Gary Griggs, Distinguished Professor of Earth and Planetary Sciences, UCSC Sea-level rise presents coastal cities and their inhabitants, as well as government agencies at all levels, some serious challenges for the future. The concerns any particular community or city faces depends upon the topography or elevations of the area relative to sea level, what […]






The Future Of Sea Level In California

The Future Of Sea Level In California

By Gary Griggs, Distinguished Professor of Earth and Planetary Sciences, UCSC While we know the history of sea-level rise for the past 150 years or so quite well, the future of sea level is much more uncertain, and the farther we go out into the future, the greater the uncertainties. Because sea level is intimately […]






Keeping Track of Sea Level

Keeping Track of Sea Level

By Gary Griggs, Distinguished Professor of Earth and Planetary Sciences and Director of the Institute of Marine Sciences at UCSC Sea level rose fairly rapidly when the last Ice Age ended about 18,000 years ago. Ice sheets melted, glaciers retreated, and all of that melt water flowed into the oceans. Most of the nearly 400 […]






Climate Change And Sea Level Fluctuations

Climate Change And Sea Level Fluctuations

By Gary Griggs, Distinguished Professor of Earth and Planetary Sciences and Director of the Institute of Marine Sciences at UCSC The level of the ocean around the Earth, and therefore the location of the shoreline, is inextricably tied to climate. As climate changes, so does sea level. Throughout the history of the oceans, which goes […]






Sea Levels Are Always Changing

Sea Levels Are Always Changing

By Gary Griggs, Distinguished Professor of Earth and Planetary Sciences, UCSC Sea level isn’t what it used to be, and it isn’t going to be the same in 20 or 30 years as it is today. The level of the ocean never stays the same for long, but we have developed our coasts and shorelines […]