Vocabulary

• in total: Completely; with everything added together.
• in terms of
• as a result of: Because of something; owing to.
• slow down: To reduce the speed
• have been around: To have a lot of experience in life.
• come up with: To think of an idea or solution; produce
• in the first place: To begin with; as the first point or consideration.
• in a nutshell: As a summary; including the main points concisely
• in comparison: When compared to something else.
• heat up: To become warmer; to make something warmer.
• in the world: Used to emphasize a question expressing surprise, confusion, or disbelief.
• in mind: Being aware of or considering something.
• in the past: During a former period of time; previously.
• energy sources: Materials or processes that can produce energy.
• at a time: Separately; one by one
• shut down: To close an operating system, e.g. on a computer
• per year: For each year; annually.
• phase out: To gradually end a task, or sell a product
• due to: Because of; owing to
• in conclusion: Used to indicate a summary or final point.
• no matter: Regardless of; it does not matter.
• look at: To use your eyes to focus on something
• regardless of
• chronic: Always or often doing something, e.g. lying
• deserve: To be worthy of, e.g. getting praise or attention
• term: Conditions applying to an agreement, contract
• consequence: Importance of a person or thing
• respiratory: (Medical) concerning breathing
• disease: Illness that affects a person, animal, or plant
• current: Electricity flowing through wires
• climate: Typical weather conditions in a particular place
• increase: To make or become larger in size or amount
• fuel: To give power to (a mob, anger, etc.); incite
• estimate: Guess or calculation of cost, size or value
• stroke: When blood cannot get to brain, causing damage
• toll: Sound that a big bell makes, when it is rung
• occur: To come to pass or to happen
• concern: To be about a particular topic
• premature: Happening before the natural or desired time
• response: Something said/written as an answer to something
• compare: To consider how similar and different things are
• result: Something produced through tests or experiments
• scientific: Concerning academic study of the physical world
• temporarily: For a limited amount of time
• pretty: Being attractive to the eye in a simple way
• risk: To do something potentially dangerous or foolish
• relate: To demonstrate a logical relationship between
• major: High-ranking officer in the army
• dip: To decrease or lower temporarily
• acute: (Of an angle in math) of less than 90 degrees
• radiation: Energy transmitted as rays, waves or particles
• fossil: Plant or animal that became rock after many years
• dioxide: An oxide containing two oxides per molecule
• rapid: Moving or happening very quickly
• pessimistic: Having negative feelings about the future
• carbon: Chemical element with an atomic number of 6
• place: To put someone in a particular type of situation
• problematic: Being difficult to deal with or fix
• government: Group of people and system that rule a nation
• accident: Sudden unplanned event causing damage, injury etc.
• mixture: Something made by combining two or more things
• change: To exchange one set of clothes for another
• nitrogen: A colorless chemical element without a smell
• pollution: Dangerous substances released into an environment
• lung: One of the two organs we use to breathe
• wide: Having a great distance from one side to the other
• mankind: All humans thought of as one group; humanity
• renewable: Being able to be replaced naturally
• appease: To give in to someone's demands to avoid conflict
• widely: To a large degree; over a large range
• problem: Something difficult to deal with or causes trouble
• heart: A feeling of care for others; compassion
• dangerous: Involving the chance of hurt or damage; risky
• cancer: Any growth caused by abnormal cell division
• unit: One apartment in a building
• calculate: To find an answer using mathematics
• people: Persons sharing culture, country, background, etc.
• elevation: Height of a place
• ozone: Gas protecting the earth from the sun
• dam: Wall built to stop the flow of water
• unnatural: Not being what you would expect; not normal
• pulmonary: Concerning the lungs/disease of the lungs