Natural gas is a fossil fuel that, when in combustion, produces heat-trapping CO2. It also generates other global emissions when leaking during extraction and its distribution. In the Current Policies Scenario, global gas demand rises by 2% per year, resulting in almost 60% more demand in 2040 than today.
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- As coal extraction and use is heavily based on science, more researchers and scientists come forward to testify that coal was viable, yes, but it also polluted the environment. At this point – which some call “the point of no return” – research stating that coal is bad for the environment and for human health, is overwhelming.
- At the end of the 1970s, science was already pointing to the hazards that the accumulating CO2 into the atmosphere posed. During the following decade, scientists and activists had government officials across the globe to continuously address greenhouse gas emissions. They enacted policies that would impact climate, working together. It was a window of opportunity that might have changed the warming’s course. But they failed.
- The permanently frozen ground – called permafrost – currently covering about 5.8 million miles worldwide, can melt. It’s exists not only in the Arctic or Antarctic regions, but it covers 24 percent of the land in the Northern Hemisphere. As it contains large amounts of carbon, when melting it releases CO2 and methane into the atmosphere.
- Recent findings tell us that increasing temperatures largely changed the composition of vegetation in 71 percent of research sites around the globe. Its structure has changed in 67 percent of the sites. That didn’t happened in sites with low temperature changes, so the conclusion is that the planet is very sensitive to temperature changes.
- New study reports that as greenhouse gases rise and warm the planet, the ice in Antarctica is to become more vulnerable to astronomical cycles. With CO2 going beyond 400 parts per million (ppm), Earth’s climate becomes more sensitive to its tilt, as it spins around its axis. It may not seem much, but over a 30 million years, this only happened when CO2 levels peaked to what research predicts for the end of the century.
