Madrid

People have been advised to avoid non-essential travel and many have been working from home.

Some schools have closed early, or chosen not to open at all, while the extreme heat is putting pressure on the health service.

But countries where temperatures are usually higher have adapted their infrastructure and lifestyle to cope with the heat.

There is no extreme temperature threshold that forces Australian schools to shut. For some students, this knowledge can really melt your icy pole [ice lolly].

Political leaders, diplomats and negotiators are meeting for two weeks of talks amid a growing sense of urgency.

It began with the bang of a gavel in a cavernous hall on the outskirts of Madrid.

The latest round of UN climate talks. More than 25,000 people, more than 50 heads of state.

And an urgent call to action from the UN Secretary General, Antonio Guterres.

Spanish champions Madrid became the first side to score 6,000 LaLiga goals as they overturned a 2-1 half-time deficit in Andalusia.

Asensio opened the scoring in the 11th minute before Aissa Mandi's strike and a Nacho own goal saw the visitors fall behind.

Sergio Ramos equalised for Madrid and Asensio then notched his second and Madrid's third to bring up the milestone.

Goals from Cristiano Ronaldo and Karim Benzema, either side of a Sergio Leon strike, took Madrid's tally to 6,002 by the end of the match, and sealed all three points for Zinedine Zidane's side. 

Explaining that 'el manspreading' is an English term that refers to the posture of men who open their legs too wide and take up space in the next seats, the urban transit company, EMT, has put up signs in public buses.

"This new information icon is similar to what already exists in other transport systems worldwide to prohibit people adopting a body posture that bothers other people", the company said.

The mayors of Paris, Mexico City, Madrid and Athens say they are implementing the ban to improve air quality.

They say they will give incentives for alternative vehicle use and promote walking and cycling.

The commitments were made in Mexico at a biennial meeting of city leaders.