How to Save our Planet Earth

1. Don’t allow your children to free those colorful balloons in mid air. 
2. Reduce, Reuse and Recycle. Make it a habit to reduce the things we need or we consume.
3. Be kind to trees. 
4. Broken scientific apparatus like thermometer, barometers, manometers, sphygmanometers, and float valves and other things that have mercury on it should be disposed properly. Avoid throwing this in rivers for mercury is toxic and poisonous.
5. Minimize the use refrigerators, foam blowers, solvents, aerosol spray propellants, fire extinguishers, and chemical reagents 

List of environmental issues

• Climate change — Global warming • Global dimming • Fossil fuels • Sea level rise •Greenhouse gas • Ocean acidification • Shutdown of thermohaline circulation • Environmental impact of the coal industry • Urban Heat Islands

• Conservation — Species extinction • Pollinator decline • Coral bleaching • Holocene extinction • Invasive species • Poaching • Endangered species

• Energy — Energy conservation • Renewable energy • Efficient energy use • Renewable energy commercialization • Environmental impact of the coal industry • Environmental impact of hydraulic fracturing

• Environmental degradation — Eutrophication • Habitat destruction • Invasive species • Soda lake

• Environmental health — Air quality • Asthma • Environmental impact of the coal industry • Electromagnetic fields •Electromagnetic radiation and health • Indoor air quality • Lead poisoning • Sick Building Syndrome • Environmental impact of hydraulic fracturing

• Genetic engineering — Genetic pollution • Genetically modified food controversies

• Intensive farming — Overgrazing • Irrigation • Monoculture • Environmental effects of meat production • Slash and burn • Pesticide drift • Plasticulture

• Land degradation — Land pollution • Desertification

Soil — Soil conservation • Soil erosion • Soil contamination • Soil salination • Alkali soils

• Land use — Urban sprawl • Habitat fragmentation • Habitat destruction

• Nanotechnology — Nanotoxicology • Nanopollution

• Nuclear issues — Nuclear fallout • Nuclear meltdown • Nuclear power • Nuclear weapons • Nuclear and radiation accidents •Nuclear safety • High-level radioactive waste management

• Overpopulation — Burial • Water crisis • Overpopulation in companion animals • Tragedy of the commons • Gender Imbalance in Developing Countries • Sub-replacement fertility levels in developed countries

• Ozone depletion — CFC • Biological effects of UV exposure

• Pollution — Environmental impact of the coal industry • Nonpoint source pollution • Point source pollution • Light pollution • Noise pollution • Visual pollution

Water pollution — Environmental impact of the coal industry • Acid rain • Eutrophication • Marine pollution • Ocean dumping •Oil spills • Thermal pollution • Urban runoff • Water crisis • Marine debris • Microplastics • Ocean acidification • Ship pollution •Wastewater • Fish kill • Algal bloom • Mercury in fish • Environmental impact of hydraulic fracturing

Air pollution — Environmental impact of the coal industry • Smog • Tropospheric ozone • Indoor air quality • Volatile organic compound • Atmospheric particulate matter• Environmental impact of hydraulic fracturing

• Reservoirs — Environmental impacts of reservoirs

• Resource depletion — Exploitation of natural resources • Overdrafting

• Toxins — Chlorofluorocarbons • DDT • Endocrine disruptors • Dioxin • Toxic heavy metals • Environmental impact of the coal industry • Herbicides • Pesticides • Toxic waste • PCB • Bioaccumulation • Biomagnification • Environmental impact of hydraulic fracturing

• Waste — Electronic waste • Litter • Waste disposal incidents • Marine debris • Medical waste • Landfill • Leachate • Environmental impact of the coal industry • Incineration • Great Pacific Garbage Patch • Exporting of hazardous waste• Environmental impact of hydraulic fracturing