Lithosphere-Asthenosphere boundary a thermal control of oceanic-lithosphere thickness. The continental lithosphere contains an ancient, stable part known as the craton. The LAB is particularly difficult to study in these regions and evidence suggests that the lithosphere within this old part of the continent is at it thickest and even appears to exhibit large variations in thickness beneath the cratons, thus supporting the theory that lithosphere thickness and LAB depth are age-dependent. Depths of the LAB beneath these regions (also known as shields and platforms) are estimated to be between 200 and 250 km deep. Beneath Phanerozoic continental crust, the LAB is roughly
Cool the Earth Cool the Earth Cool the Earth Inc. is a non-profit educational organization based in Northern California. The mission of Cool the Earth is to educate kids and their families about climate change and motivate them to take simple measurable actions at home to reduce their carbon emissions. Currently, the organization offers programming to over 100 elementary schools. Cool the Earth was founded in 2007 by Marin County parents, Carleen and Jeff Cullen, in the North San Francisco Bay Area. The couple said that they were influenced by Al Gore's documentary on climate change, "An Inconvenient Truth". Surprised by what they