Article

Dreaming of a white Christmas?

Dreaming of a white Christmas?
Dubai, UAE

‘I’m dreaming of a white Christmas. Just like the ones I used to know. Where the treetops glisten, and children listen, to hear sleigh bells in the snow. Oh, the snow’.

COP26 is just behind us and was met with mixed reviews. The climate crisis feels more pressing with each day that passes. Will Bing Crosby’s bestselling Christmas single take on a new poignance this year, or do world leaders’ promises offer us a little Christmas hope?

A recent IPCC report shows that greenhouse gas emissions from human activities are responsible for approximately 1.1°C of global warming since 1850-1900.

The below chart forecasts global temperature change to 2100, if we don’t mend our ways.

Figure 1. Global temperature change to 2100 (past and predicted)

Note: This chart shows annual data from 1850 to 2100. It shows the historical global temperature change, which is the global average land-sea temperature anomaly relative to the 1850-1900 average temperature in degrees Celsius, median estimate, based on data provided by UK Met Office Hadley Centre.

‘Fitted (past)’ is the result of regression analysis that fits historical temperature variance to atmospheric CO2 concentration (using the natural logarithm of the 100-year moving average of concentration, on the assumption that temperature at any moment is determined by CO2 concentration over the previous 100 years. 

‘Predicted (future)’ applies that fitted relationship to our forecast of CO2 concentrations, assuming that recent trends in CO2 intensity and GDP per capita continue, though with some convergence between World Bank income groups after 2050.

Source: NOAA, Our World in Data, UK Meteorological Office, United Nations, World Bank, Refinitiv Datastream and Invesco.

Count down to Christmas with our festive charts as we publish a new piece each day. Recognise the images that feature on our calendar windows? Each corresponds to a city where an Invesco office is based.

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