Some global hazards are insidious. They stem from pressure on energy supplies, food, water and other natural resources. And they will be aggravated as the population rises to a projected nine billion by mid-century, and by the effects of climate change. An 'ecological shock' could irreversibly degrade our environment. Martin Rees
A pun does not commonly justify a blow in return. But if a blow were given for such cause, and death ensued, the jury would be judges both of the facts and of the pun, and might, if the latter were of an aggravated character, return a verdict of justifiable homicide. Oliver Wendell Holmes, Sr.
Climate change, in some regions, has aggravated conflict over scarce land, and could well trigger large-scale migration in the decades ahead. And rising sea levels put at risk the very survival of all small island states. These and other implications for peace and security have implications for the United Nations itself. Ban Ki-moon
A ghost is someone who hasn't made it - in other words, who died, and they don't know they're dead. So they keep walking around and thinking that you're inhabiting their - let's say, their domain. So they're aggravated with you. Sylvia Browne