TYB
In his keynote speech, Mr Trump said that it was a time for optimism, not pessimism, in a speech that touted his administration's economic achievements and America's energy boom.
Speaking of climate activists, he said: "These alarmists always demand the same thing - absolute power to dominate, transform and control every aspect of our lives."
They were, he said, "the heirs of yesterday's foolish fortune tellers".
Mr Trump also announced that the US would join an initiative to plant, restore and conserve a trillion trees.
"We're committed to conserving the majesty of God's creation and the natural beauty of our world," he said.
He also spoke about abundant petroleum, clean coal, gas hydrates and next gen nuclear. Burning petroleum, coal and gas, produces lots of Carbon Dioxide. Since this is plant food, Trump announced that the USA is joining the Trillion trees initiative to plant more trees.