No. It reduces the amount of force required, but it does not reduce the total amount of work. In fact, due to friction, it will probably increase the total amount of work.
A force machine does not reduce the amount of work that has to be done
see catalytic converter.
nothing yet
A lot
To reduce ozone loss, CFC's are banned. They react with ozone to deplete it.
You governments can restrict the amount of children a couple can have.
No you still do the same amount of work
One thing that being done about thermal pollution is that less electricity is being used. Another thing is that heated water is being reused and stored to reduce thermal pollution.
The planting of more trees can protect soil from wind and water erosion. The terracing of hillsides also helps to reduce the effects of erosion.
Machines can automate tasks previously done manually, leading to increased efficiency and productivity. While they may reduce the amount of physical work required, they can also create new job opportunities and allow humans to focus on more complex or creative tasks.
To dispose of the dangerous components in old refrigerators (HFC'S AND CFC'S) which rotted away the Ozone layer, the dangerous parts are either prior to shredding or recycling.
No. It has never been done.