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COP 27 – level 3
11-11-2022 07:00
On November 6, 2022, representatives from 197 countries convened...Air Health in USA – level 1
07-11-2022 15:00
Scientists study air pollution. From 1999 to 2015, they...Air Health in USA – level 2
07-11-2022 15:00
From 1999 until 2015, scientists studied concentrations of fine...Air Health in USA – level 3
07-11-2022 15:00
A recently published study analysed concentrations of fine particulate...Qatar solar power plant – level 3
24-10-2022 07:00
On Tuesday, Qatar opened a 800-megawatt solar power plant...History for sale – level 1
29-07-2022 07:00
Unusual things from history are on auction. The things...
