Climate change is influencing extreme weather events like the flooding across six countries that has led to mass evacuations of cities as the waters continue to rise.

With the Czech Republic, Poland and Germany preparing for heavy rainfall and flooding, here's what you need to know about the extreme weather phenomenon "five B" and why it's getting worse. In a Vb weather situation,

Devastating floods through much of Central Europe and deadly wildfires in Portugal are joint proof of a 'climate breakdown' that will become the norm unless drastic action is taken, the European Union's head office said Wednesday.