Climate change - EdexcelExplaining climate change and global warming
Evidence has shown that Earth鈥檚 temperature is rising due to an increase in greenhouse gases. This has created and will continue to create, a number of negative effects.
The global climate has been changing since time began and will continue to change into the future. However, since around 1950 there has been a dramatic increase in global temperatures. This increase is known as global warmingThe rise in the average temperature of the Earth's surface. .
The Earth's average temperature has changed over the last 500,000 years. There are times when global climate is warmer (interglacial phases) and times when it has been cooler (glacial phases), when there have been ice ages.
The last major cold period was known as the Pleistocene. It started 2.6 million years ago and ended just 10,000 years ago. Since then, conditions have been warmer. This current warm phase is known as the Holocene. The Holocene and Pleistocene are part of the Quaternary Period of Earth's history.