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Research brief: The importance of humidity in heat stress

The key measures are the “Wet Bulb Globe Temperature” often used to screen for dangerous heat at sporting events and in workplaces, the “Wet Bulb Temperature” beloved of weather geeks, and “Apparent Temperature” quoted to the public by weather services. The bottom line is that the closer we are pushed to our physiological limits by extreme heat, the more important humidity becomes.

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Research briefing note 001: What is the chance of global warming exceeding 1.5°C in the next 5 years?

An international group of scientists has now forecast the likelihood global warming will exceed 1.5C over the next 5 years. This is one of the thresholds of the UNFCCC’s Paris Agreement, which aims “to strengthen the global response to the threat of climate change by keeping a global temperature rise this century well below 2°C above pre-industrial levels and to pursue efforts to limit the temperature increase even further to 1.5°C”.

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