"It is fifty years since the United Nations convened the Stockholm Conference on the Human Environment. But since then, few of our promises on the environment have been honoured," Guterres says at the conference in Vienna.

"Last year, global energy-related carbon dioxide emissions grew by 6 percent when they should be falling. Let me be blunt: most national climate pledges are simply not good enough," he says.

The climate conference is taking place in Vienna on 14 June 2022, exactly 30 years after the 1992 Earth Summit in Rio de Janeiro, where the United Nations Framework Convention on Climate Change (UNFCCC) treaty was signed.

Since 1992, many speeches on the matter have been held, many promises have been made, but emissions continue to rise and the climate crisis and the issue of pollution are more pressing than ever.

"Facing a war in Europe has shattered long-held beliefs and now adds a new dimension to the topic of climate change. The climate crisis as well as war leaves us overwhelmed with fears and worries of what is to come," the summit's website states.

At this year’s conference, the organizers hope to send a strong signal to the world, that there is hope for peace and a sustainable future.