In the best of stories, it is actually characterization that moves the story along, because a compelling character in a difficult situation creates his or her own plot.. Karen Bernardo, Characterization in Literature In fictional literature, authors use many different types of characters to tell their stories.
Greenhouse gases and global warming. Gas molecules that absorb thermal infrared radiation, and are in significant enough quantity, can force the climate system. These type of gas molecules are called greenhouse gases, Michael Daley, an associate professor of Environmental Science at Lasell College told Live Science.
Methane is a potent greenhouse gas that is capable of trapping large amounts of heat in the atmosphere. As it was replaced with oxygen, the temperature of the Earth cooled drastically. This cooling, between 2400 million years ago and 2100 million years ago, gave rise to the Huronian glaciation (Melezhik, 2006).