Earth Explorer

Shallow geothermal energy – high efficient heating and cooling of hotel complexes and commercial buildings with borehole heat exchanger systems as seasonal storage for heat and cold The utilization of shallow geothermal energy with borehole heat exchangers and heat pumps for heating and cooling of buildings is very popular in Europe due to low costs of operation and high operating reliability. These systems have the highest rates of growth of all energy supply systems in Europe. In order to provide a productive and comfortable climate for a living and working environment, buildings have an anti-cyclical demand of heat and cold. During the summer, when abundant heat is available, they have to be air-conditioned, while in wintertime, when cold is at disposal, the buildings have to be heated. Especially the heat and cold supply for hotels and commercial buildings is a challenge, as their huge energy demand needs to be satisfied with a reliable and cost-effective solutio...

In 2009, Al Gore followed up with the publication of Our Choice: A Plan to Solve the Climate Crisis , a book that "gathers in one place all of the most effective solutions that are available now and that, together, will solve this crisis". "It is now abundantly clear that we have at our fingertips all of the tools we need to solve the climate crisis. The only missing ingredient is collective will." 00:20:19 One thousand years of temperature history obtained from isotope analysis of ice cores. 00:16:08 Measured since 1958, atmospheric carbon dioxide (CO2) has been increasing steadily. 00:20:53 One thousand years of CO2 and temperature data -- the curves have similar shape. 00:22:49 650,000 years of CO2 and temperature history, from Antarctic ice cores. Dips record ice ages. CO2 concentration and temperature are related. CO2 has spiked upward in recent years. 00:23:53 If no changes are made, CO2 concentration is predi...