Who can correct spelling of following paragraph, please... Thank you in advance!!!

The pie charts compare the percentages of energy consumed for various purposes and how much greenhouse gas is emitted by an average Australian family.

Overall, while the power is mainly spent on heating, the activity contributing the largest proportion of glasshouse gas emissions is, in fact, water heating. That is, if an activity absorbs much energy, it is not necessery that activity discharge a large amount of hothouse gas.

In terms of the principal elements, despite the fact that nearly half of total energy (around 42%) is used for heating, only less than a fifth (15%) of total greenhouse gas emissions are constitued by this acitivity. On the other hand, the share of energy usage and released the high global warming potential gas is approximately the same for the water heating activity (almost a third), for the cooling activity (a very small minority at 3% and 2% respectively).

Turning to other minor factors, the percentage of global greenhouse gas emitted are twice as large as the corresponding share of power harnessed, such as: refrigeration (at 14% and 7 % for each instance), lighting (8% and 3% correspondingly) and other appliances (28% and 15% respectively).