Tonight, a band of cloud and showers will move off to the south-east early on leaving mainly clear skies. A chilly night with a moderate northwest breeze. Sunday Tomorrow will be settled with dry ...

Carbon dioxide (CO2) blood tests evaluate the presence of the gas in your blood. If your CO2 levels rise too high or fall too low, the test results may be an indication that you have a health ...

Try these discussions to improve your speaking and listening. There are 20 questions in each activity - 10 for Student A and 10 for Student B. You can print out the worksheet. You can listen to the ...

The global annual mean CO 2 concentration in 2021 was 414.4 ppm—a 50 per cent increase from the concentration of 277 ppm in 1750. Other long-lived greenhouse gases also contribute to global warming.