Climate change is a new thing.
True. The planet’s temperature has risen about 1.2 to 1.4 degrees Fahrenheit.
False. The Earth's climate is always changing.

Gradual increase in the earth's surface temperature is known as
Global warming
Green house effect
Ozone layer

Global warming, this is, the gradual increase of the temperature of the earth, is due to natural causes.
True. It is caused by the greenhouse effect which begins with the sun. When sunlight reaches the surface of the earth, some of it is absorbed and warms the surface.
False. It is caused by the greenhouse gases that humans have released into the atmosphere.
False. The increase in temperatures is the result of natural causes, but it is also the result of human behaviour.

Up to now, what has the warmest year been?