How does atmospheric carbon dioxide affect the Earth’s climate?
A. It decays radioactively and produces heat
B. It reflects solar radiation releasing more heat to the Earth´s atmosphere
C. It captures more solar radiation trapping in heat in the Earth´s atmosphere
D. It changes the colour of the atmosphere
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How old is the Earth?
A. 1 billion years
B. 180 000 years
C. 4.5 billion years
D. 3 million years
What is the Montreal Protocol?
A Free trade agreement between the USA and Canada
B. An international directive on how to conserve endangered species
C. An international treaty designed to protect the ozone layer
D. An international agreement designed to reduce GHG emissions
What are generally considered to be the three components of sustainable development?
A. Design, engineering, and culture
B. Energy, water, and biodiversity
C. Society, economy, and environment
D. Social, economic, and spiritual awareness
Why isn't ocean acidification a local problem like other kinds of marine pollution?(Please select one answer)
A. Because it is caused when atmospheric CO2 dissolves in the oceans all over the world, and humans are increasing global atmospheric CO2 concentrations
Because C02 is dissolved especially easily in the polar regions and then spreads throughout the ocean along the thermohaline conveyer and major ocean currents
C. Because CO2 is released from the deep ocean layers globally and cannot escape into the atmosphere
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