English Comp 2 Power Point Presentation

This document discusses various strategies and technologies for improving energy efficiency as outlined in Lester Brown's book Plan B 3.0. It highlights wind and solar energy as abundant and economical sources that can be harnessed through technologies like helical turbines and solar thermal collectors. It also mentions initiatives in countries like the UK to deal with energy crises and calls on US citizens to participate in energy efficiency efforts through changes like improved home technologies that could make the world better in decades to come.