"For all the immediate challenges that we gather to address this week -- terrorism, instability, inequality, disease -- there's one issue that will define the contours of this century more dramatically than any other, and that is the urgent and growing threat of changing climate."- President Barack Obama, September 2014.
Inaction over decades on curbing carbon emissions that lead to global warming has led us to where we are now- increased temperatures around the world and rising sea levels that are putting entire countries at risk.
But lawmakers, business magnates and conservative media around the world have derailed the process of curbing climate change for economic gains at the expense of our livelihood.
The video above will tell you who is responsible for today's biggest threat.