THE ISSUE OF GLOBAL WARMING

Is global warming man-made? There is a great deal of discussion around the topic of global warming without universal agreement. Although we do not have all the answers, we do know that reducing our energy consumption and emissions will benefit the environment, and that makes good business sense. To help you gain a greater understanding of this complex issue, we have formulated some facts and definitions that will help you better grasp what global warming is and what it means to be carbon neutral by offsetting the carbon footprint. (A carbon footprint is the total amount of carbon dioxide (CO2) and other greenhouse gases emitted over the full life cycle of a product or service.)

WHAT IS GLOBAL WARMING?

Global warming is the gradual increase of the Earth’s surface temperature. Many scientists believe it is caused by an increase in greenhouse gas emissions into the atmosphere. Given the natural variability of the Earth’s climate, it is difficult to determine the extent of change that humans cause.

WHAT ARE THE GREENHOUSE GASES?

Many chemical compounds found in the earth’s atmosphere act as greenhouse gases. They include carbon dioxide CO2, methane CH4, nitrous oxide NO2, water vapour, halogenated fluorocarbons and ozone. When sunlight strikes the earth’s surface, some is reflected back towards space as infra-red radiation - heat. Greenhouse gases absorb and trap the heat in the atmosphere.

BECOMING CARBON NEUTRAL

When an individual or an organization sets out to become carbon neutral it is usually achieved by a low carbon economy, combining the following: Limiting energy usage and emissions from transport (by walking, using bicycles or public transport, avoiding flying and using low-energy vehicles) as well as from buildings, equipment and processes. Obtaining electricity from renewable energy sources - either directly by generating it ourselves (by installing solar panels on the roof for example) or by selecting an approved green energy provider, and by using low-carbon alternative fuels such as bio-fuels. Offsetting the remaining emissions that cannot for the moment be avoided or generated from renewables in a responsible carbon project, or by buying carbon credits.