Al Jazeera analyses 20 years of climate data from more than 1,200 cities around the world. Here is what we found.
Heatstroke is a severe medical condition that occurs when a human body’s internal temperature exceeds 40C (104F).
Four US presidents and one candidate have been assassinated since the founding of the US.
The 32 members of the world’s most powerful military alliance will spend $1.47 trillion this year.