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The Science of Climate Change

Global Temperature Trends

Global Temperature Trends

Global temperatures have been rising since the industrial revolution, and the rate at which they are increasing has accelerated in recent years. The Intergovernmental Panel on Climate Change (IPCC) has reported that the average global temperature has increased by 0.85°C (1.5°F) since the late 19th century. This may not seem like a lot, but it is having a significant impact on our planet.

Greenhouse Gases

One of the main drivers of this temperature increase is the release of greenhouse gases, such as carbon dioxide, methane, and nitrous oxide, into the atmosphere. These gases trap heat from the sun, causing the Earth's temperature to rise.

Natural Variations

While global temperatures have been increasing, there have also been natural variations in temperature due to factors such as volcanic activity and changes in solar radiation.

However, the current rate of temperature increase is far greater than what would be expected from natural causes alone. In fact, 19 of the 20 warmest years on record have occurred since 2001.

Consequences

If global temperatures continue to rise at their current rate, it could have catastrophic consequences. These include:

  • more frequent and intense heatwaves
  • droughts
  • floods and storms
  • rising sea levels
  • loss of key ecosystems

Solutions

To combat this, we need to:

  • reduce our greenhouse gas emissions
  • transition to cleaner sources of energy

This will require significant changes in our energy systems, transportation, and land use practices.

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