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"Forest ecologists like a challenge however, and there have been several attempts at estimating the forest carbon "sink". According to this analysis, intact forests and those re-growing after disturbance (like harvesting or windthrow) sequestered around 4 billion tonnes of carbon per year over the measurement period - equivalent to almost 60% of emissions from fossil fuel burning and cement production combined."

Also the chart below taken from a Climate Spectator article by Dr Jenny Riesz is one of the most illuminating. It shows the cross-over point between the cost of wind and a gas combined-cycle power plant depending on gas and carbon prices. While it is slightly out of date with the cross-over between wind and gas now about $1 per GJ lower than indicated, it still provides a good illustration of how gas and the carbon price influence the economics between wind versus gas.

"If you're worried about dressing ethically, chances are you think about sweatshop conditions in developing countries, unsustainable farming practices, convoluted global supply chains that ring up a huge carbon footprint, and mountains of fast-fashion festering in landfill. But the first thing you should think about is how often you wash your clothes. It turns out that when you look at the whole life cycle of a piece of clothing, everyday washing and drying damages our natural environment the most."