"It obviously warmed after the last ice age … but it did stop warming." Rosh then carefully displayed the data that supported what he was saying, via a graph titled "Global Temperature Since the ...

However, don't rush for your woolly hat and scarf just yet, because the long-term effects of human-made climate change could prevent the next ice age from ever happening. Our planet has always ...

Earth's history is a roller-coaster of climate fluctuations, of relative warmth giving way to frozen periods of glaciation before rising up again to the more temperate climes we experience today.