1) The Pacific Ocean is the largest ocean on Earth, covering more than 30% of the planet's surface.

2) Mount Kilimanjaro in Tanzania is the highest mountain in Africa and attracts climbers from around the world.

3) The Southern Ocean surrounds Antarctica and is the coldest and least-visited ocean.

4) The global response to climate change includes the Paris Agreement, an international treaty aiming to limit global warming and strengthen countries' efforts to address climate change through mitigation and adaptation strategies.