Climate change, pollution, environmental degradation and resource depletion are just a few of the greatest challenges facing the world in the 21st century. Tackling these challenges means carrying out ...

Perplexity AI Pro brings real-time web results with citations and Deep Research, so you get trusted answers fast and cut ...

As scholars increasingly rely on online sources for research, it’s important to consider the long-term accessibility and stability of these materials. Content published on websites—including ...

Lindsey Ellefson is Lifehacker’s Features Editor. She currently covers study and productivity hacks, as well as household and digital decluttering, and oversees the freelancers on the sex and ...