• It produces greenhouse gases
• Its by products cause damage to the environment
• Once exhausted they are not easily replenished
• Rising cost
• Its residual products are generally non-biodegradable
• Its products pose potential threat to human health
• Responsible for acid rain

Fossil fuels—coal, oil, and natural gas—do substantially more harm than renewable energy sources by most measures, including air and water pollution, damage to public health, wildlife and habitat loss, water use, land use, and global warming emissions.

Humans extract non-renewable resources in the form of gas, liquid, or solids, and then convert them into convenient forms for easy consumption. Non-renewable resources, such as coal and oil, are the primary source of power in the world, and they are used to power vehicles, factories, and homes.

Huge amounts of fuel reserves: to keep power stations working, you need truckloads of fuel. This can make energy generation very expensive. Public health issues: because of all their nasty air pollution, burning fossil fuels can lead to lung problems and asthma attacks in humans.

When fossil fuels are burned, they release large amounts of carbon dioxide, a greenhouse gas, into the air. Greenhouse gases trap heat in our atmosphere, causing global warming.

Resource depletion occurs when the renewable and non-renewable natural resources become scarce because they are consumed faster than they can recover. The term resource depletion is commonly associated with water usage, fossil fuel consumption, trees and fishing.

• Cost. The initial cost of purchasing a solar system is fairly high
• Weather-Dependent. Although solar energy can still be collected during cloudy and rainy days, the efficiency of the solar system drops
• Solar Energy Storage Is Expensive
• Uses a Lot of Space
• Associated with Pollution

Along with methane, landfills also produce carbon dioxide and water vapor, and trace amounts of oxygen, nitrogen, hydrogen, and non methane organic compounds. These gases can also contribute to climate change and create smog if left uncontrolled.

Tidal energy is the most reliable source of renewable energy because of the continuous change in tidal movements that occur twice a day from the moon's gravitational force. Tidal energy runs 24 hours a day, 7 days a week, 365 days a year.

Natural resource depletion occurs when resources are taken from the environment faster than they are replenished. Causes of natural resource depletion include population growth, consumer habits, industrialization, climate change, and pollution.

Solar energy is a renewable resource, and many technologies can harvest it directly for use in homes, businesses, schools, and hospitals. Some solar energy technologies include photovoltaic cells and panels, concentrated solar energy, and solar architecture.

It plays a key role in shaping ecosystems by serving as an agent of renewal and change. But fire can be deadly, destroying homes, wildlife habitat and timber, and polluting the air with emissions harmful to human health. Fire also releases carbon dioxide—a key greenhouse gas—into the atmosphere.

Solar energy is a renewable resource, and many technologies can harvest it directly for use in homes, businesses, schools, and hospitals. Some solar energy technologies include photovoltaic cells and panels, concentrated solar energy, and solar architecture.