The USGS have a useful site on acid rain, atmospheric deposition and precipitation chemistry . NASA's new high-resolution images produce graphic drought measuring pictures of conditions in some parts of the world. Most renewable energy sources ultimately involve the Sun and the atmosphere. A visit to Denmark will soon show you that wind power is big there. The Danish Wind Turbine Manufacturers Association have a good guided tour of wind power which includes plenty of detail on wind power generation and on background meteorology of winds in general that fits in well with our course.
Energy balance is an important topic in our course.
A related topic is geothermal energy which you can begin exploring at the Geo-Heat Centre . The Global Seismic Hazard Assessment Program gives maps covering the whole globe showing the chance of sesimic activity over the next 50 years. A longer term view is given by NASA's excellent Digital Tectonic Activity Map . A short look at the interior of the Earth is given in a brochure produced by the US Geological Survey. The changing face of the world over the past 1000 million years is the remit of the paleomap project which has excellent colour maps and animation.