STORY: The war in Ukraine and the ongoing energy crisis, which has seen power prices soar, are dominating the headlines with just a week to go before the vote while welfare, schools and gang crime also head the list of voter concerns.
Thunberg, whose Friday protests outside Sweden's parliament years ago turned into a global youth movement demanding action on climate change, said the issue had been "pretty much non-existent", during the campaign.
"We have been completely focusing on other things," she told Reuters.
Thunberg said politicians and the media had "chosen not to communicate that so many of the crises that we are experiencing now are very closely interlinked".
"Therefore, people of course only focus on things that are right ahead of them instead of actually focusing on the larger holistic picture," she said.