Why is natural gas considered a bridge fuel to renewables?

Natural gas is considered a bridge fuel to renewables because it emits less carbon dioxide than other fossil fuels during combustion.

Natural gas, primarily composed of methane, is a fossil fuel that is cleaner and more efficient than coal and oil. When burned, it produces fewer harmful emissions and greenhouse gases, making it a more environmentally friendly option. This is why it is often referred to as a 'bridge fuel'. It serves as a transition from the heavy carbon-emitting fossil fuels like coal and oil, to the zero-emission renewable energy sources such as wind, solar, and hydroelectric power.

The combustion of natural gas releases about half the carbon dioxide (CO2) per unit of energy produced compared to coal. This makes it a more attractive option in the short term for power generation as countries seek to reduce their greenhouse gas emissions and mitigate the impacts of climate change. Furthermore, natural gas power plants are more flexible than coal plants, as they can be ramped up and down quickly in response to changes in electricity demand. This makes them a good complement to renewable energy sources, which can be variable and unpredictable.

However, it's important to note that while natural gas is cleaner than coal and oil, it is still a fossil fuel and its combustion still contributes to global warming. Moreover, the extraction and transportation of natural gas can result in leaks of methane, a potent greenhouse gas. Therefore, while natural gas can play a role in the transition to a low-carbon energy system, it is not a long-term solution to the climate crisis.

In conclusion, natural gas is considered a bridge fuel because it can help to reduce greenhouse gas emissions in the short term, while we develop and deploy renewable energy technologies. However, it is not a sustainable solution in the long term, and the ultimate goal should be to transition to a fully renewable energy system.