Lex Fullarton takes a closer look at the three pillars of the sustainable development framework known as the Triple Bottom Line (TBL). The concept of the TBL is that for a project to be sustainable it must not simply be profitable in economic terms, but it must also benefit society and enhance the natural environment. In the 21st century, the greatest threat to Earth’s natural environment and the population of the planet is the rise of greenhouse gas emissions caused from burning fossil fuel...