Have earthquakes been more frequent recently? If so, is there a reason, or is this just coincidence?
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Is sending an e-card more environmentally friendly than sending one made from trees?
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How many more hours of light would you get if you were sitting at the top of Mount Everest compared to someone at the same latitude, sitting at sea level?
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Which are worse for the environment, volcanic eruptions or plane emissions?
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I've read that painting rooftops white can help to cool cities. So does ploughing away the snow warm the earth up and add to global warming?
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Have the seasons ever shifted? Assuming we could follow our own calendar back millions of years, would northern hemisphere dinosaurs be shivering in January and sunbathing in June?
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When does it make sense to hang washing out on the line? Will it still dry even in low temperatures?
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How do countries measure their Carbon Dioxoide output? Could we be over/underestimating a nation's emissions?
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Why do we get red sky? Does it really serve as a warning for the following day's weather?
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While on holiday in Wales and looking out over Cardigan Bay I was wondering what dictates the frequency of the waves?
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With the budget introducing the £2000 subsidy to scrap old cars, I'm trying to figure out how much energy and carbon goes into the manufacture of a new car. Considering the increase in efficiency of the new car, how many miles would I have to drive to achieve an overall carbon saving?
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Where would be the best place for an asteroid to strike the Earth? Would deep ocean, land or polar ice cap be the least destructive?
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Petrified wood is a type of fossil, but some claim to have seen wooden fence posts that have already become petrified. Is it scientifically possible for wood to fossilise in such a short period? We ask how petrified wood is formed, and what exactly does it consist of?
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As lightning can strike in the same place twice if you get struck by lightning and it stops your heart and then you get struck by it again would it restart you heart?
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How do fish survive in both salt water and fresh water?
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When will the worlds oil reserves run dry?
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How do they predict the tides with such precision? And who needs it that precise?
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Will the increased levels of carbon-dioxide speed up the formation of caves?
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