Can we contribute to safe the world?

In this decade, more and more concern over environmental issues, just to name a few :
1) Climate change - global warming, greenhouse gas, ocean acidification, etc
2) Land degradation - land pollution, soil contamination, etc
3) Toxins - toxic heavy metals, toxic waste, etc
4) Waste - waste disposal incidents, landfill, recycling, etc
5) Water pollution - acid rain, ocean dumping, oil spills, etc
6) and many more

Can we as an ordinary people to help contributing to the world? Below are some thoughts that we may apply to our daily life.

1) Energy saving - use energy saving home appliances, switch off the electrical items when not in use, turn off the stand by mode
2) Recycle the waste - segregate the different wastes into plastic, paper and glass and send to recycling centre
3) Reduce the usage of non-environmental friendly products such as
a) plastic - by using green bag, concentrated liquids to reduce the containers, recyclable bottles, etc
b) chemical - rely on natural or naturally derived and biodegradable formulas products
4) Create the sustainability awareness among our society community
5) Take less meat and imported food - this can help to reduce the consumption of water, gasoline, land of the planet

It sounds not that difficult! We try our best!