Why is the climate changing so fast?

Answer 1

Natural climate change during most of the Cenozoic has occurred over a hundred thousand year cycle known as the Milankovich Cycle. This has been earth's primary driver of climate for millions of years.

Any given year might be unusually warm or unusually cold. These natural variations are not considered to represent climate change. The smallest scale for change is about 5 years. If you have five above average years in a row, you can state that climate has changed. It could still change back, but for earth as a whole the 20th century represented a fairly steady pace of climate change, with the past three decades representing an unusually rapid rate of change.

Virtually all of earth's climate scientists expect this rate to continue, if not increase, due to human activity in terms of the liberation of fossil carbon into CO2.

Answer 2

It normally takes thousands of years, for example, from the last Ice Age till now. However the recent global warming and climate change has been happening extremely fast, like in the past twenty or thirty years. The earth has never warmed up so fast before. This is why climate change is so dangerous!

Answer 3

Humans have the ability to emit over thirty billion tonnes of carbon dioxide into the atmosphere in one year. An unprecedented rate of change in atmospheric greenhouse gas concentrations inevitably means an unprecedented rate of increase in average global temperatures and, consequently, unprecedented climate change.

Answer 4

The climate is changing rapidly primarily due to human activities such as burning fossil fuels, deforestation, and industrial practices, which release greenhouse gases into the atmosphere. These gases trap heat, leading to global warming and erratic weather patterns. The speed of climate change is exacerbated by feedback loops and tipping points within the Earth's systems.

Answer 5

Climates change slowly. Usually changes take hundreds of years, but now we are seeing changes in climate happening much more quickly, in twenty or thirty years.

Answer 6

4 times a year, with the seasons.