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:
At least 73 injured after Houthi rebels attack Saudi civilian and energy facilities
At least 73 civilians have been injured after Yemen's Houthi rebels attacked a number of civilian and energy facilities in Saudi Arabia's southern region on Tuesday, state media confirmed.
Nepal rescue focused on workers trapped in three tunnels
Rescuers in Nepal are focusing on three hydropower project tunnels where they believe dozens of workers could be trapped, authorities said on Tuesday, two weeks after a devastating flood killed hundreds and left thousands missing.
Indonesia reopens Jakarta airport, four others after Anak Krakatau ash clears
Indonesia has reopened its main airport in Jakarta and four others that had been closed due to volcanic ash from a series of eruptions at Mount Anak Krakatau, transport minister Dudy Purwagandhi said in a statement on Tuesday.
Russia hits Kyiv after brief pause for US envoys' visit, killing two
Russia pummelled Kyiv with drones and missiles early on Tuesday, resuming its air attacks after a brief halt for the visit of US peace negotiators, killing two people and triggering fires across the Ukrainian capital.
Kenya offers temporary amnesty to undocumented East Africans amid crackdown fears
Kenya's government offered a temporary amnesty to undocumented East African nationals after hundreds of Burundians flocked to their country's embassy in Nairobi on Monday seeking travel documents, fearing a crackdown on small-scale traders from abroad.
