Climate campaigner Greta Thunberg on Tuesday challenged countries that have recognised a Palestinian state to back up what she called "symbolic gestures" with more pressure on Israel to end its offensive on the Gaza Strip. "Of course it's good that the Palestinian cause is more on the agenda, but these symbolic gestures will lead nowhere unless they are accompanied with real action," Thunberg told Reuters via video conference while at sea near Greece. It says recognition of a Palestinian state gives a "reward to terrorism". And no risks that we could take could even come close to the risks the Palestinians are facing every day." Thunberg said she believed she could contribute better to the mission outside leadership and that the decision "in no way" affected her commitment to the Palestinian cause.