TORONTO - Prime Minister Justin Trudeau was among the millions of people around the world who turned off lights and cell phones between 8:30 and 9:30 last night to mark Earth Hour.

The event began in Australia in 2007 to draw attention to the need to join the fight against climate change.

A spokesman for the prime minister says the lights were turned off at the Rideau Hall cottage where the Trudeau family is living while renovations are done to the official residence at 24 Sussex Drive.

After Earth Hour, Trudeau tweeted that his government's budget to be tabled Tuesday afternoon will contain steps to deal with climate change.


In Montreal, city hall and the cross atop Mount Royal went dark for the hour.

During last night's Earth Hour, Toronto Hydro reported a drop of 3.2-per-cent in power demand -- the equivalent of taking 36-thousand homes off the grid.

PowerStream, which serves nine municipalities north of Toronto, reported a drop of 4.3 per cent drop in power demand.

That's down from the six-per-cent reduction PowerStream experienced for last year's Earth Hour.

Figures from other utilities across the country were not immediately available.

-With files from CTV Montreal