Zero and First conditional (global warming)

Global warming / extreme climate change

Proterozoic

Hadean

2.5 Billion - 542 million years ago

4.6-4.0 Billion Years Ago

.Timeline.

Phanerozoic

Archean

542 million years ago - present

4.0-2.5 Billion Years Ago

Reading

.Hadean.

Scientists all around the world have warned about the terrible consequences for our survival if we do not start changing the way we use natural resources.

a. If population growth continues this fast, there will not be enough food for everybody in the future. b. If we have high CO2 concentration levels, the sun’s heat does not go back into space and stays on the planet.

.Archean.

c. If the sun’s heat stays, it produces a greenhouse effect and global warming. d. If humans destroy ecosystems, many species lose their homes forever. Now, two in five amphibian species are at risk of extinction.

.Proterozoic.

e. If farmers do not stop using toxic chemicals on crops, many pollinator insects will disappear. In some regions, one in ten insect species are in danger of extinction.f. If we do not reduce plastic use, our oceans will have more plastic items in them than animals.

.Phanerozoic Intro.

Cenozoic

Mesozoic

Paleozoic

If the temperature of the planet increases, ice from the poles will melt and disappear. If the ice at the poles disappears, many cities on the coasts will be flooded. If we start doing something now, we will avoid a sad future.

Reese, 2009; Watts, 2019

NOTE: Look for the meaning of the words highlighted in orange.

Growth / go back

crops / increases

avoid / melt

Title 3

Title 2

Title 1

The zero and first conditionals

04. Image

The zero and first conditionals are used in English to describe situations that happen or will happen in the future

Title 3

Title 2

Title 1

Zero Conditional:

Facts, scientific laws, habits, instructions, and rules. If the sun’s heat stays, it produces a greenhouse effect and global warming.

04. Image

First Conditional:

Probable result in the future for actions in present.If the temperature in the world increases, ice from the poles will melt and disappear.

From the list presented in the reading, choose four possible consequences of actual human habits on the environment. Write a possible solution for each of them.

THANKS!