President Obama In Paris For Climate Summit

Government and business leaders are banking on clean energy technology to fight global warming, kicking off this week’s high-stakes climate change negotiations by pledging tens of billions of dollars for research and development.

Microsoft founder and philanthropist Bill Gates, President Barack Obama and French President Francois Hollande will announce the new initiative on Monday, committing to spend tens of billions of dollars for a technological fix to the planet’s climate woes.

There is a lot of pressure for governments to pledge additional aggressive steps. The U.N. climate summit formally opened Sunday afternoon with a minute of silence for the victims of this month’s Paris attacks and vows not to let terrorism derail efforts to slow or stop climate change. Of course in the wake of the Paris attacks, extraordinary security measures are in place.

ABC’s Tom Rivers is in Paris.