Mars, today a cold, irradiated, and dry world, once had a much warmer and wetter environment. The planet was covered by lakes ...

The surface of Mars is extremely cold, irradiated, and desiccated. But at one time, the planet was much warmer and wetter, ...

Such changes may have an impact on atmospheric conditions outside the region. Several hypotheses for how Arctic warming may be influencing mid-latitude weather patterns have been proposed recently.

FARGO — Small local storms with damaging wind, hail or tornadoes (what we call severe storms) are relatively common around the world in the middle latitudes ... the lower and mid-levels of ...