UK Must Prepare for Extreme Weather Linked to 2°C of Global Warming by 2050

Strategic Insights -

As the UK continues to experience its hottest summer on record, climate advisers are warning that the country is not adapted to worsen extremes such as heatwaves, droughts, wildfires, and flooding, which are already occurring at current levels of 1.4°C of warming. The Climate Change Committee (CCC) has urged the UK Government to set out stronger objectives and targets for protecting health, homes, food security, infrastructure, and key public services, in the face of 2°C of warming by 2050.

Key Takeaways:

  • The UK is not prepared to cope with extreme weather associated with 2°C of global warming by 2050, which will lead to more frequent and powerful weather events, including heatwaves, droughts, wildfires, and flooding.
  • The committee has called for a framework of clear long-term objectives for adapting the UK to climate change by 2050, driven forward with targets every five years.
  • New homes, electricity networks, and infrastructure must be built with the potential to be adapted to cope with temperatures of up to 4°C above pre-industrial levels by the end of the century.
  • The UK's food security, supporting nature, and preserving people's health and wellbeing from rising temperatures must be prioritized.
  • The CCC has warned that the risk of wildfires will increase, with an extension of the wildfire season into autumn, and significant increases in days with favorable conditions for blazes.
  • Sea levels will rise, peak rainfall across the UK is expected to increase by up to 10-15% on the wettest days, and peak river flows will increase by up to 40% for some catchments, raising the risk of flooding.
  • The committee has emphasized the need for the UK Government to treat adaptation with the same urgency as reducing emissions globally.
  • Baroness Brown of the adaptation committee for the CCC has criticized Conservative leader Kemi Badenoch's pledge to scrap the Climate Change Act, which created the framework for cutting emissions to net zero by 2050 and adapting the UK to climate impacts.

Statistics:

  • The chances of a heatwave occurring each year will double with global warming of 2°C above preindustrial levels.
  • The time spent under drought conditions across England is expected to double.
  • Sea levels are projected to rise, and peak rainfall across the UK will increase by up to 10-15% on the wettest days.
  • Peak river flows will increase by up to 40% for some catchments.
  • The risk of wildfires will increase, with increases in days with conditions highly favorable for blazes to break out.

Sources:

  • The Climate Change Committee (CCC)
  • The UK Government
  • The Paris Agreement
  • The Climate Change Act
  • Baroness Brown of the adaptation committee for the CCC
  • Kemi Badenoch, Conservative leader