Cook and Trump have had an interesting relationship ever since the real estate mogul became president.
But her address was just as accusatory toward global and big business leaders.
The theme of the conference is Stakeholders for a Cohesive and Sustainable World.
But a planned appearance by Iranian Foreign Minister Mohammad Javad Zarif - which could have paved the way for a showdown or even meeting with Trump - has been cancelled.
"Europe and America are moving slightly apart from each other".
But whether the subject is impeachment or the climate change that scientists say imperils humanity, Trump seemed determined to see the world through his Trump-tinted glasses.
Elsewhere the consensus was that he was significantly over-claiming on the "deal" with China. The long-time US allies ultimately did just that, last week.
"We are all fighting for the environment and climate". Oil and gas executives are scheduled to meet for a private dinner tonight in Davos, in which climate change is expected to be a top topic of behind-the-doors discussion, according to an executive who planned to attend the dinner and asked not to be named as it's a private event.
Legault made the remarks just hours before heading to Davos. Macron tweeted Tuesday morning that he and Trump had a "great discussion" where they agreed to work together "to avoid tariff escalation".
"The Fed raised rates too quickly and has lowered them too slowly", Trump said of the Federal Reserve, taking aim at the central bank's policy decisions. Trump will also have the stain of impeachment on his record. Global business and political leaders will tackle climate and environmental threats during the summit.
Among other attendees of the Tuesday dinner were various Cabinet members and White House advisers, including acting Chief of Staff Mick Mulvaney, economic adviser Larry Kudlow and Treasury Secretary Steven Mnuchin. "That is without a doubt adding complexity to business in general".
Besides auto tariffs, the digital services tax is another thorny issue between the United States and the bloc. But that's not what Trump and Cook will be talking about. Several European leaders, including Macron, have invited Trump to high-profile ceremonies, in part to keep trade discussions going and avoid tariffs.
Thunberg accused leaders of "cheating and fiddling around with numbers" with talk of cutting emissions to "net zero", or emitting no more carbon than is absorbed by the planet or technical means, by 2050.
The key fact here being that this would not be able to be calculated before the November election date.
Trump, who is running for reelection in less than 10 months, used his speech to boast about the United States, including its energy and fossil fuel policies, which he described as "boldly embracing American energy independence". McDonald's has borne the brunt of severe criticism due to being viewed as the epicenter of mass produced food and is one of the largest buyers of beef in the world, an industry that has been targeted by climate activists in the past.
Thunberg said she has spent a year trying to promote the findings of a 2018 Intergovernmental Panel on Climate Change report that shows countries can only release another 420 gigatons of carbon dioxide in order to have the best chance at keeping the rise in global temperatures to under 1.5 degrees.