By Sean Martin
By Lara Rebello
- COP21: What you need to know about the Paris climate change conference
- COP21: Greenpeace warns the fight against climate change is about saving humanity
- World Aids Day 2015: Why eliminating stigma and discrimination is essential to fight HIV
- Humai wants to resurrect the dead with AI, cloning and nanotechnology – but is it real?
- Israel: Ancient seeds found in excavation reveal diet of prehistoric humans