Throughout this week, leaders from around the world have discussed our most urgent challenges while gathered in New York for the United Nations General Assembly. Here are five speeches from the week that you should watch.

1. Emma Watson, UN Women Global Goodwill Ambassador, delivered a powerful speech on gender equality as part of the UN’s “ HeForShe” campaign to involve boys and men in the movement.

2. Kathy Jetnil-Kijiner , a civil society representative from the Marshall Islands, opened the UN’s Climate Summit on September 23 with a moving poem and plea for action on climate change.

3. During his address to the UN General Assembly, U.S. President Barack Obama outlined the challenges facing the global community and the importance of international cooperation.

4. At a high-level meeting at the UN, Secretary-General Ban Ki-moon highlighted the urgent need for the international community to step up its efforts to respond to Ebola. You can watch it here.

5. UN Messenger of Peace Leonardo DiCaprio helped kick off the UN Climate Summit with a call to action for world leaders to rise to the challenge of climate change.

And as a bonus, we’ll leave you with President Obama’s remarks recognizing the hard work of UN workers around the world.