Why is global warming a fact?

Answer 1

Global warming is a fact because we have proof of rising average global temperatures. The year 2010 had the warmest global average temperature on record, fractionally warmer than 2005 and 1998, but as the difference is slight, the three years are regarded as the equal hottest. The past decade was the warmest since instrumental measurement began in 1850, and the ten warmest years since 1850 have now all occurred since 1998. There is nothing illusory about the facts demonstrated by these measurements.

Answer 2

Because people don't want to accept it as fact even though it is clearly so. Al Gore noted that it is very difficult to get someone to accept the reality of some fact when to do so appears to put a person's employment at risk. For example, the CEOs of tobacco companies all testified before congress that they did not believe there were any harmful health effects from cigarette smoking.

Answer 3

Global warming became a controversial issue when climate scientists realised that it was becoming a serious problem and recommended urgent and far-reaching action to slow down and stop our excess emissions of greenhouse gases.

Paul Gilding described the typical reaction to this in his book, The Great Disruption: Why the Climate Crisis Will Bring on the End of Shopping and the Birth of a New World. He says, "When you are surrounded by something so big that it requires you to change everything about the way you think and see the world, then denial is the natural response. But the longer we wait, the bigger the response required."

Gilding was right to see denial as a typical reaction. Others say that vested interests oppose any action on global warming, and some have undertaken very effective publicity campaigns to undermine public acceptance of the science and the action required.

Answer 4

Global warming is a fact because scientific evidence shows that Earth's average temperature has been rising due to human activities, such as burning fossil fuels and deforestation, which release greenhouse gases into the atmosphere. These greenhouse gases trap heat, causing the planet to warm at an unprecedented rate, leading to climate change impacts such as melting ice caps, rising sea levels, and more frequent extreme weather events.

Answer 5

Al Gore.