The evidence lies in ocean mud, in fossil pollen, and in changes in ratio of chemical isotopes that record shifts in temperature.

证据就存在于海洋泥土，花粉化石和记录温度变化的化学同位素比值变化之中。

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All scientists subscribe_to the view that the increase in the earth's temperature is due to the burning of fossil fuels like coal, natural gas and oil to produce energy.

所有科学家都赞同这样的观点：人们为了生产能量而燃烧化石燃料(如煤、天然气、石油等)，从而引起了地球温度的升高。

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A key test of the biological hypothesis for ALH 84001 is the formation temperature of the carbonates that contain the putative fossil evidence.

对84001生命假说来说，一个重要的测试是这个化石里碳酸盐的形成温度。

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The authors say that, even if the rules are relaxed to allow emissions to a level associated with a 3C temperature rise, there will still have to be limits on fossil fuel burning.

BBC: Firms 'own unburnable fossil fuels'

Some climate change "sceptics" claim that this process, rather than the burning of fossil fuels, can explain much of the Earth's recent rise in temperature.

BBC: Cloud simulator tests climate models