Climate Change from Humans

Climate changes
Haven't humans done enough to Earth?
We've been polluting this planet
Caused global warming too
All these gases and carbon-dioxide are destroying Earth
Making it hotter
Also isn't good to breath in all the smoke and gas
The ice caps have been melting
Causing misery for ocean animals
And making ocean levels rise
Which can cause flooding 
And that can ruin animals habitats
Making them flee from their homes
Can us humans fix things?
If we stop fighting and work together?
Can we stop polluting and extinction
Along with global warming?
Have humans doomed the Earth to it's end?
Haven't humans done enough to Earth?