Environmental problems
poisonous or harmful things in the air
air pollution
to protect something from damage or waste
conserve
groups that have different national or cultural traditions from the main population
ethnic minorities
high healthcare costs
not enough rainfall / shortage of water
drought
using less energy (adj.)
energy-efficient
the group who are employed in unskilled or semi-skilled manual or industrial work
the working class
the kind of population where the average age is increasing
ageing population
long-term heating of Earth's surface due to human activity
global warming
to reuse a material (e.g. waste paper, plastic bottles, etc.)
recycle
people who raise children without a partner
single parents
when different groups of people are treated differently (n.)
inequality; discrimination
When a plant or animal completely dies out (e.g. dinosaurs)
extinction
energy that does not pollute the environment
clean energy
people who are above age 60
the elderly
language barrier
a natural fuel, such as coal or gas, formed from living organisms
fossil fuel
grown or raised without using chemicals (adj.)
organic
the group of people who don't have jobs
the unemployed
the problem of not enough or too expensive housing
housing problem