The temperature difference between the warm, rising air and the cooler environment causes the rising air to become buoyant, further enhancing its upward movement.
Tropical storms and hurricanes grow bigger by feeding off warm, rising, moist air.
The anabatic winds caused by warm rising air gradually bring these clouds to the summit region in the afternoon.
It should come as no surprise that human activity is causing the world's oceans to warm, rise and acidify.
"Me & U" is the final track, and it'll thaw even the coldest Nordic native with warm, rising synth lines and textured drum 'n' bass loops.
But this is an important celebration, which signifies that even in the middle of this spontaneous cold weather, we're looking to the warm, rising sun that'll soon nurture the earth with new life.
After dropping for two years during the recession, emissions of the gases blamed for global warming rose in 2010 as the economy heated up, the Environmental Protection Agency reports.
Long-term solutions lie in tackling global warming, rising sea levels, pollution and overharvesting; in the short term we can nurse back devastated ecosystems into economically productive habitats.
Yet, even if we managed to stop increasing global carbon emissions tomorrow, we would probably experience several centuries of additional warming, rising sea levels, and more frequent dangerous weather events.
This year's studies by the Intergovernmental Panel on Climate Change concluded that centuries of warming, rising seas and species extinctions would probably result unless there were sharp curbs in climate-warming emissions within a few decades.
