some good points here for sure with fracking that also have issues, such as causing earth quakes.
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Look at the picture you see drilling straight into oil reservoirs, a different method to fracking.
The reservoirs full up with water after taking the oil out.
Back in 2009, two scientists in Sweden argued that thermal emissions were
more important than CO₂ for raising global temperatures. A few years later, two Chinese scientists suggested that heat from the earth’s interior could be
contributing to rising temperatures. They argued that fossil fuels such as coal, oil and gas in layers and crevices beneath the Earth’s surface act as an insulating blanket, trapping heat from the planet’s interior. As these deposits have been emptied by fossil fuel extraction, more of that heat could be reaching the surface.
This idea is similar to how fat tissue under the skin
prevents body heat from being lost to the surrounding air. To investigate this theory in the Earth’s crust, we looked at the figures for global fossil fuel production alongside data for temperature changes on the land and sea surface.
Our research suggests that it is possible that temperatures may be rising faster in places where fossil fuels are being extracted from the ground.
was found to be up to 4.5°C warmer.
Groundwater that discharged from a mine water pumping station was also found to be unusually warm, in part due to heating from the Earth’s interior. The researchers concluded that this effect could be expected in former coalfields across Britain.
Could higher rates of warming in these places be caused by the Earth losing its internal “heat shield”? The idea that some regions have a protective layer below the ground, stopping heat from the Earth’s interior rising to the surface, isn’t as strange as it may sound. After all, the ozone layer in Earth’s atmosphere protects against ultraviolet radiation, but it was
only discovered in the 19th century. Astounding new findings about the Earth system emerge all the time.
If a similar heat-trapping shield exists in the Earth’s crust, much must be done to reinforce it. Carbon emissions that are captured from industry and energy generation could be stored in the crevices left by extracted fossil fuels, re-insulating the sub-surface and helping to slow the thermal emissions that could be amplifying global warming.
Scientists have said for some time that any hope of halting catastrophic climate change rests on leaving
fossil fuels in the ground. Our preliminary findings could give that warning new urgency. Underground reserves of oil have existed for far longer than humans have exploited them – we know worryingly little about the consequences of emptying them.
Rising heat
Between 2007 and 2017, 45.5 billion tonnes of oil and 36.3 billion cubic metres of natural gas were
removed from the Earth’s crust. When oil and gas is extracted, the voids fill with water, which is a less effective insulator. This means more heat from the Earth’s interior can be conducted to the surface, causing the land and the ocean to warm.