A gradual increase in world temperatures caused by gases in the air which prevent heat escaping into space.
global warming
Discrimination against a person or people on the basis of their membership of a particular racial or ethnic group.
racism
A situation when a person who is actively searching for employment is unable to find work.
unemployment
A medical condition in which excess body fat has accumulated to the extent that it may have an adverse effect on health.
obesity
The state of having no home or permanent place of residence.
homelessness
Crime such as vandalism, car theft and mugging that are usually committed outdoors.
street crime
The presence in or introduction into the environment of a substance which has harmful or poisonous effects.
pollution
Doing scientific tests on animals when developing new products or drugs.
animal testing
The problem of habitual taking of illegal drugs
drug abuse
The state of owing money.
debt
Too many people living in a particular place
overpopulation
The condition of becoming filled or covered with a large amount of water.
flooding
A state or condition in which a person or community lacks the financial resources and essentials for a minimum standard of living.
poverty
Aggressive behaviour within the home, typically involving the violence against a spouse or partner.
domestic violence
The decrease in forest areas across the world that are lost for other uses such as agriculture, urbanization, etc.
deforestation
The suppression of speech, public communication, or other information.
censorship
An epidemic that's spread over multiple countries or continents.
pandemic
The consumption of a resource faster than it can be replenished.
resource depletion
A prolonged period of abnormally low rainfall, leading to a shortage of water.
drought