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Carbon Neutral Air Conditioning

Air conditioning hire (London) Ltd has taken the decision to go carbon neutral in it's own operations from February 2007. We have also decided to contribute to a Carbon Offset programme in respect of the typical summertime use of our portable air conditioning systems within customers' own premises.

Carbon Offsetting made simple

Each time we cool our office, heat our homes, fly on business or holiday, or drive the car, CO2 is added into the atmosphere. CO2 is a greenhouse gas that is released when fossil fuels such as oil, gas and coal are burnt. This happens when electricity is used to drive our hired air conditioning units at the power generation plants used to generate the power for your air conditioning.

Offsetting means paying someone to reduce CO2 in the atmosphere by the same amount that our and our customers activities add. In this way we can 'neutralise' or 'balance' the CO2 added by our activities and those of our customers when running their equipment hired from us. Whilst this is not a perfect science we have based our calculations to achieve the offset on what we believe the duty that our air conditioning machines give to our customers over a typical summertime period of hire. Obviously individual customers' applications may vary and we have used what we believe to be an average modeling technique.

Air conditioning hire (London) Ltd achieves this by making a contribution to Climate Care, a well respected and known organization that we believe is a leader in this field. You can find out more by logging on to

Climate Care offsets your CO2 by funding projects around the world. These can be in:

  • Renewable energy - this replaces non-renewable fuel such as coal
  • Energy efficiency - this reduces the amount of fuel needed
  • Forest restoration - this absorbs CO2 from the atmosphere as the trees grow

So as well as taking steps to reduce our 'carbon footprint' we have tried to offset our customers 'carbon footprint' created by the use of our hire equipment.

Has your busniness thought about reducing or offsetting it's own 'carbon footprint''? There are a number of business reasons why your organisation may want to offset their emissions, including an improved Corporate Social Responsibility position, better brand positioning, or using offsets as a way to internalise the cost of carbon and to anticipate and prepare for future legislation.

Is Climate Change Really Happening?

Climate change is emerging as one of the great challenges for modern society. Despite decades of research, important things remain uncertain, but much is now established beyond reasonable doubt.

The basic mechanics of climate change are well understood; the world is warming, much of the warming is due to emissions by human activity of greenhouse gases, and the changes are set to accelerate in the future,potentially bringing many and varied impacts around the world.

Carbon dioxide is the main contributor responsible for 80% of emissions from industrialised countries. The gas is released into the atmosphere primarily from burning fossil fuels: oil, petrol and natural gas. A growing population coupled with increasing demands on transport and energy, has led to emissions increasing at dramatic rates.

Other greenhouse gases which arise from a range of industrial and agricultural sources are:

  • Methane
  • Nitrous oxide
  • Hydrofluorocarbons (HFCs)
  • Perfluorocarbons (PFCs)
  • Sulphur Hexafluoride (SF6)

Combined, these greenhouse gases absorb infrared radiation in the atmosphere and thus change the dynamic balance between energy arriving from the sun and energy escaping.

Since the 1950s scientists have observed, a shrinking of the Artic ice cap, the retreat of mountain glaciers as well as a lengthening of the freeze-free season.

Warming increases evaporation and precipitation, and both aggregate rainfall and occurrences of 'heavy precipitation events' at European latitudes - the principal cause of flooding - has also increased in recent decades. There is also evidence that the frequency and intensity of storms is increasing in certain areas.

Although it is difficult to obtain accurate predictions on the impacts of climate change, climate models foresee a global temperature rise in the range of 1.4 - 5.8o C by 2100 if current greenhouse gas emission trends remain unchecked.

Over the past 140 years the earth's surface temperature (both over the land and the sea) has increased on average by 0.60.2o C with the greatest increases occurring the second half of the last century; the 1990s were the warmest years in recorded history. Although this rise in temperature may appear small, it is scientifically significant and does have dramatic impacts on climate, e.g. Northern Europe is predicted to become wetter and the Mediterranean drier.

Even if some measures are taken, the effect will continue accumulating for centuries.

The impacts of even a small increase in temperature are expected to be significant, particularly in certain regions.

Effects are expected to include:

  • Flooding in low-lying coastal areas
  • Wetter, warmer winters and dryer, hotter summers in the Northern Hemisphere
  • More extreme weather conditions worldwide (storms, drought, heavy rainfall)

The impact will be far-reaching and will affect not only the humans but also the wildlife and their ecosystems on the planet; those that are able to adapt will survive, those that cannot won't.

Whilst we at Air conditioning hire (London) Ltd cannot make a big impact in the overall picture, we are at least making our own small step in ensuring that we neutralise our own 'carbon footprint' and in so far as we are able the 'carbon footprint' of our customers activities by the contribution caused by the running our our equipment to obtain comfortable working conditions at our customers' premises.