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Ice swimming – level 2
13-02-2025 07:00
CBC reporter Sandra Abma tried cold-water swimming in Ottawa’s...Fuel from cooking oil – level 1
20-01-2025 15:00
Spain is turning used cooking oil into cleaner airplane...Fuel from cooking oil – level 2
20-01-2025 15:00
Spain is using biofuel made from used cooking oil...Fuel from cooking oil – level 3
20-01-2025 15:00
Spain is leading efforts to make aviation more sustainable...Norovirus in the US – level 2
03-01-2025 15:00
Norovirus is spreading quickly in the US. There were...