Morning mail: Europe targets Australia on climate, new US riot vision, 'Instagram-worthy' universities

Thursday: Europe urges Australia to be more ambitious' on climate as big-emitting businesses face carbon levies. Plus: McDonald's wants food given to staff to count towards their remuneration

It's day two of the second Trump impeachment trial and it promises to be a big one; Australia is firmly in Europe's climate change spotlight; and US health experts state the case for double-masking". I'm Richard Parkin, bringing you all that and more ahead, in today's morning mail.

Europe wants Australia to become a bit more ambitious" on its climate targets, the EU's ambassador in Canberra has told Guardian Australia, with an extensive lobbying campaign expected ahead of this year's Glasgow climate conference. The election of the Biden administration has spurred momentum towards a global commitment of net zero emissions by 2050, Dr Michael Pulch explained, saying climate change was probably the top priority" for the current European Commission. A new analysis has also suggested that major Australian businesses exporting to Europe could face carbon levies of more than $70 a tonne unless the federal government introduced more significant gas emission legislation.