英國每日郵報:我們經常說由于人類因為缺少環保意識才導致了地球變暖,但是,事實真的是這樣嗎?目前這還是個具有爭議的話題.

Daily Mail: Was the Earth in a period of global warming or cooling before the 20th century?

Attempting to answer this question has thrown up a conundrum for scientists, with some studies showing a warming trend, while others suggesting it cooled until humans intervened.

Now a new study hopes to settle the issue by arguing that data points to the fact that Earth's climate has been warming over the past 10,000 years - long before human activity is thought to have changed the climate.

It argues that previous research that showed a cooling trend was wrong because it used contradictory ice core data.