>> A chill in the air at the start of the World Economic Forum on Tuesday, as participants expressed far less confidence in the global economy than they did last year. I'm Conway Giss inside the Congress Center. Right from the start, some titans of global finance sounded the alarm.
Ray Dalio, which runs Bridgewater Associates, the biggest hedge fund in the world, warned that economic growth in the US and Europe will slow significantly. Now to further that point, Axel Weber, chairman of UBS, said rate hikes in the US and Europe are dead. At least for now.>> It's a personal treats for me to be sitting here asking you questions.
>> And the warnings coming out of Davos weren't just of the financial kind. In a sit down chat with Britain's Prince William, noted naturalist, Sir David Attenborough had some stern words about the environment. It's difficult to overstate it. We are now so numerous, so powerful, so all-pervasive, the mechanisms that we have for destruction are so wholesale and so frightening that we can actually exterminate whole ecosystems without noticing it.
>> But there was gloom or doom coming from Brazil's new far-right president Jair Bolsonaro. He used his first star turn on the world stage to say South America's largest economy, though spluttering, is read to once again fuel global growth.>>
> We are here because in addition to deepening our ties of friendship, we want to deepen our trade relations.
We have the world's largest biodiversity and we have abundant mineral riches. We want partners with technologies, so that this marriage can be turned into progress and development for all. Our actions, make no mistake, will attract you to big business opportunities. Not only for Brazil's benefit, but also for the benefit of the whole world.
>> Bolsonaro is just the first of many world leaders to speak at the forum. Germany's Angela Merkel will serve as a flag bearer for the G7 on Wednesday, with most of her counterparts kept away by troubles at home.