Reacting to the U.S. withdrawal from the Paris Agreement, several high-tech industry leaders have pledged renewed environmental efforts. "Disappointed with today's decision. Google will keep working hard for a cleaner, more prosperous future for all," tweeted CEO Sundar Pichai. "Withdrawing from the Paris climate agreement is bad for the environment, bad for the economy, and it puts our children's future at risk," wrote Facebook CEO Mark Zuckerberg. "We will double our efforts to fight climate change," tweeted Salesforce CEO Marc Benioff.