A powerful winter storm has unleashed torrential rain across Southern California, triggering flash flooding and prompting evacuation orders. Authorities have declared a state of emergency in six counties and warn the dangerous conditions could continue through Christmas Day. | Al Jazeera English

Algeria’s parliament unanimously passed a law declaring France’s colonisation a crime. Lawmakers celebrated in the chamber as they demanded an apology, reparations and assigned France legal responsibility for the harms caused during colonial rule. | Al Jazeera English

Alcohols To Ethers via Acid Catalysis – Master Organic Chemistry