Climate change can be quite a controversial topic. Some might even call it a myth. Yet Bill Gates recently warned against climate change altogether.

Along with billionaire friend Warren Buffett, the Microsoft co-founder held a Q&A with some students at Columbia University on Friday. Gates pushed for alternative and innovational methods to produce clean energy.

Among other things, Gates said that it would greatly benefit the planet to obtain cheap, reliable, and clean energy.

Back in December, Gates said that he and a few other investors would put at least $1 billion in a fund called Breakthrough Energy Ventures. Breakthrough Energy Ventures is a fund that seeks to further the development of energy that is not only affordable but will reduce greenhouse gasses on a global level.

During the question and answer session with the students, Gates admitted that even though he wasn’t sure what Trump’s plans are on the subject, he has hope for the future.

Gates said, “Certain topics are so complicated like climate change that to really get a broad understanding is a bit difficult and particularly when people take that complexity and create uncertainty about it” About Sharnita Sanders Sharnita is a nerd at heart with a love of all things geeky. She also has this odd obsession with collecting books of all genre, ranging from contemporary to manga. When not writing, she can be found surfing the web and battling her online shopping addiction.