In a [recently concluded] international summit held [in the heart of New York City], leaders from around the world gathered to discuss strategies [aimed to combat climate change]. The conference, [attended by over fifty nations], saw a [surprisingly united] front, with countries [previously at odds with each other] coming together for a common cause. The primary focus was on [reducing greenhouse gas emissions], with special emphasis on industries [known for heavy carbon footprints]. The summit ended with a [jointly signed] declaration, [pledging to take immediate action].