Archeology chips in its bit on the climate debate. The Economist reports that by studying ancient plumbing, researchers may have confirmed that sea rise is real and recent: "[T]he sea level has remained reasonably constant over the past 2,000 years. This is in contrast to precise tide-gauge measurements recorded for the past century from around the globe, which have led the Intergovernmental Panel on Climate Change to conclude that sea level has been rising by at least 1mm per year. If this rate of change is extrapolated back, the sea level when Caesarea was abandoned should have been about 1.5 metres lower than today, and 2-3 metres lower than when it was built. Data from the Caesarean wells show that this is not the case, which means that the rise in sea level detected in the 20th century is a recent phenomenon. ... Caesarea's Roman plumbing suggests that the oceans are now encroaching on to the land at a pace not seen since the end of the last ice age."