A petition calling on the Belgian government to strengthen its climate policy has already been signed by 100,000 people.
Meanwhile, thousands of Belgian students will again be skipping class for the sixth week in a row.
They're also demanding a better climate policy.
Kevin Ozebek has more from Brussels:

US pauses all immigration applications from 19 non-European countries
Hunt for missing flight MH370 to resume this month, Malaysia says
Israel's Netanyahu says Syria deal possible, expects buffer zone
Hamas says it will hand over one of two last hostage bodies in Gaza
