Scientists tell us that a temperature difference of just a few degrees can make all the difference. Indeed, five degrees Celsius is the difference between average temperatures today and during the last ice age. furthermore, a rise of another five degrees would transform the entire physical and human geography of our planet! Climate change and global warming have become the key issues of the 21st century. The International Energy Agency's World Energy Outlook projection currently suggests that unless the world changes its ways, CO2 emissions will almost double by 2050. In this article, Arthur Ulens, President of AGC Flat Glass, describes how energy efficiency in buildings need not have negative environmental effects providing the appropriate glass technology is embraced.
