Welsh Government Future Trends Report 2017: Climate Change

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The slides provide the background data and information that have informed the future trends identified under the climate change theme. This presentation should be viewed alongside those for the other themes in order for the wider picture to be understood.

Welsh Government Future
Trends Report 2017– Climate
Change Theme data slides
The following slides provide background data
and graphs used for the Climate Change
theme in the Future Trends Report 2017

Data from the Intergovernmental Panel on Climate Change (IPCC) -
Atmospheric CO2 levels are unprecedented for 800,000 years.
Atmospheric CO2 concentrations have
• increased by about 40% since 1750, due to human activity
• exceed values recorded in ice cores for the last 800,000 years
IPCC AR5 2013

IPCC Observed Impacts attributed to climate change

Changes in the Welsh climate
Based on Met Office data
Summer precipitation has decreased and winter precipitation has increased slightly
over the same period.1

Average temperatures have increased in Wales since 1910 with the average annual
temperature increasing from a level of 8.69ºC (over the period 1910 to 1939) to
9.22ºC over the latest 30 years (1984-2013).
Based on Met Office data

What are the impacts for Wales?
Rainfall in 2050’s
• An increase in mean winter precipitation
of 14%
Very unlikely to be < 2% and > than
30%).
• A decrease in mean summer
precipitation of 17%
Very unlikely to be < 36% decrease
and > 6% increase).
Under the 2050s Medium Emissions
scenario

For more information on the Welsh Government Future
Trends Report 2017, please visit the following address:
http://gov.wales/statistics-and-research/future-trends/
Background data slides are also available on the website
for the other Themes of the Future Trends Report:
Population; Health; Economy & Infrastructure; Land Use &
Infrastructure; and Society & Culture.

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