A carbon footprint represent the effect of human activities on the climate in terms of the total amount of greenhouse gases produced (measured in units of carbon dioxide). Simply, it is a measure of the impact of our behaviours and lifestyles on the planet. In fact, most of our activities generate carbon emissions, which contribute to accelerating global warming and climate change.

Thinking in a sustainable way would lead us to reduce our carbon footprint. There are many definitions for sustainable development and one simple definition is our ability to live within our planet's limits. Sustainability means living in a world where the process of building real estate projects does not dictate producing all types of waste that pollute the land. It means, producing and harvesting food does not necessarily dictate the use of pesticides that pollute the ground water. It means, transportation of people and goods does not dictate polluting our air. It also means generating electricity for our air conditioning and lighting does not mean we waste fossil fuels and pollute the air.

We need to be more aware of the environmental and social impacts of our daily business and personal decisions. One may ask, how can we think sustainably? The answer is simple - think of the impact of your decision on the environment, the economy and the society. If any of your decisions do not address the three elements then it is not sustainable.