The earth is getting warmer.
The earth is getting cooler.
The earth's temperature is just right.
The suns rays get down to earth and back out again.
The suns rays cannot get down to earth.
A barrier in the atmosphere, letting sun rays in, but not out.
Because bees are dying.
Because the planet's temperature is rising.
Because the sun is going to explode.
It gets harder to breathe.
Ice sheets melt.
More frequent cool days and fewer hot days.
Cooler summers and less frequent fires.
More extreme weather conditions like floods, storms and heat waves.
Drive more, and walk less.
Rely more on carbon-based fuels.
Decrease global greenhouse gas emissions.
De-carbonizing energy production.
Stopping energy consumption.
Using nuclear energy.