The current reduction of 0.1 in pH that has occurred over the industrial era translates to a 30 % increase in ocean acidity. This change has occurred at a rate that is about a hundred times faster than any change in acidity experienced during the past 55 million of years. A further decline of 0.3-0.4 pH units, projected for surface waters during the 21st century, represents a 100-150 % increase in acidity.
On very hot days use public transport rather than your car.
Car exhaust emissions react with sunlight and heat to cause polluting gases such as tropospheric ozone. This is the main ingredient of poor air quality and photo-chemical smog, which can cause breathing difficulties. To find out the level of ozone pollution across Europe, go to EEA's Live Ozone Map.
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