Climate Change Facts

In this page:

What is climate change? 

What is climate change caused by?

What are the impacts of climate change?

What is climate change?

Watch this video by Sir David Attenborough

Since the industrial revolution, humans have burnt more coal, oil and gas (fossil fuels) than ever before, which releases lots of carbon dioxide and other greenhouse gases into the air. This has caused average global temperature to rise, also known as global warming. This is causing many negative changes such as extreme weather events, rising sea levels, and risk to the survival of animal and plant species, to name a few.

What is climate change caused by?

Watch this video for an overview

Certain gases in the atmosphere trap the heat we get from the Sun, which keeps the world at around 15⁰C. This is known as the 'greenhouse effect', keeping the Earth warm enough for life to survive. This is a natural process, without the greenhouse effect, Earth would be a frozen wasteland.

There are four main 'greenhouse gases' which cause the greenhouse effect, they are:

  1. Carbon dioxide
  2. Methane
  3. Nitrous oxides
  4. Fluorinated gases (such as HFCs).

Before the industrial revolution, there was a balanced amount of these gases in the atmosphere, enough to keep the planet warm for life to survive. The problem is humans have released lots more of these gases into the atmosphere since, causing the Earth to trap too much heat, leading to the average global temperature is rising to dangerous levels. Therefore, to live in a more sustainable way, we need to stop releasing so many of these greenhouse gases.

What are the impacts of climate change?

Chances are you have probably noticed the impacts of global warming without realising their links to climate change - hasn't summers seemed hotter recently? Has your local area flooded more than usual, or flooded when it never has done previously? These can all be linked to climate change. It is predicted that in the UK summers will be hotter and drier, whereas winters will be warmer and wetter.

Climate change has already affected the UK, for example:

 

Questions? Email the climate change team