"I shouldn't be up here". Yet you all come to us young people for hope? And all you can talk about is money and fairytales of eternal economic growth.
In Mozambique, cyclones Idai and Kenneth killed more than 600 people earlier this year when they struck one after the other, with flooding wreaking havoc on the lives of more than 2 million in Mozambique, Zimbabwe and Malawi, according to aid agency World Vision.
Days after millions of young people took to the streets worldwide to demand emergency action on climate change, leaders gathered for the annual United Nations General Assembly aiming to inject fresh momentum into stalling efforts to curb carbon emissions.
"You're changing the world, so we're very excited to have you", he said. But the young people are starting to understand your betrayal.
She said her message to the global leaders gathered in NY is simple: "We are watching you". The World Meteorological Organization released the report ahead of the U.N. Climate Action Summit that kicks off in New York City today. "How dare you continue to look away and come here and say you're doing enough when the politics and solutions needed are still no where in sight".
"And that's kind of what's happening with our planet today, is that somewhere along the line we've lost balance".
Murombedzi said it was getting harder for most African countries to meet a set of global development goals, including ending hunger and poverty by 2030, as their economies and ecosystems are hurt by climate change. But as they made their pledges at the Climate Action Summit, they and others conceded it was not enough. "Whenever there is a cataclysmic climate event, infrastructure gets undermined and overwhelmed very quickly, and it becomes very hard for developing countries or countries who do not have economic wherewithal to address these", he said.
China, the world's biggest carbon emitter by far but also a leader in the renewables sector, will be present and represented by foreign minister Wang Yi, with Guterres hinting last week that the East Asian giant will be committing to new measures. "How do we get this into the negotiations is the question", he said.
U.N. Secretary-General Antonio Guterres opened the Climate Action Summit on Monday by saying: "Earth is issuing a chilling cry: Stop".
And on Monday, Thunberg joined a group of children ages 8 to 17 in filing a legal complaint with the United Nations, accusing France, Germany, Brazil, Argentina and Turkey of ignoring climate science.
As Mr Johnson attends the summit in NY, a group of mothers staged a pushchair protest and "climate rhyme time" action outside Downing Street and the London headquarters of Shell and BP calling for them to keep polluting fossil fuels in the ground.