relevant
indicator
spike
drought
tinker
stark
radical
fossil fuels
n. a fuel (such as coal, oil, or natural gas) that is formed in the earth from dead plants or animals
adj. an unpleasant and difficult to accept experience
n. a piece of information that provides an idea about a larger topic of concern
n. a sharp rise in the price or cost of something
adj. information that is connected and important to a larger concern
adj. a serious or extreme idea or path to complete a job
n. an environmental condition that comes from a long period without rain
v. to work on something little by little