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UK climate plan: what do the terms mean?

 
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Dołączył: 03 Wrz 2020
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PostWysłany: Sro Lis 18, 2020 03:55    Temat postu: UK climate plan: what do the terms mean? Odpowiedz z cytatem






The Prime Minister of the United Kingdom is ready to publish a long-awaited "net zero" plan to tackle climate change. He has funded technologies such as carbon-hydrogen capture and storage and a mini-reactor, our environmental analyst Roger Harrabin, outlined some of the terms we would likely hear in the plan.The world is rapidly warming due to the emission of carbon dioxide and other gases from the burning of fossil fuels.Another important heating gas that man-made is methane, mainly from farming and landfill.Scientists have warned that these pollutants will not be able to reach zero by the UK 2050 selection date.

Therefore, the slotxo government is aiming for a target called net zero instead. That means emissions that clean technology can't avoid by 2050 will be buried using carbon capture and storage technology or adsorption by plants and soil.We'll cover some of these clean energy technologies.Carbon capture and storage (CCS)This is what it says on cans, a technology that uses a chemical process to capture CO2 emissions from industrial chimneys. The gas is then compressed and forced into a porous underground rock.Two decades ago it was dubbed as a weather savior. But it's very expensive and never really take off.

New technologies can also convert waste CO2 into useful chemicals. But that demand is higher than the amount of unwanted carbon dioxide.Net zero vs carbon neutral Try to get the Internet center first. Refers to balancing greenhouse gas emissions generated by the transport industry or other sources by removing equal amounts from the atmosphere. This usually happens through, for example, planting trees, which store carbon in the ground.The terms net zero and carbon neutral are often seen as interchangeable. But while net zero typically represents all greenhouse gases, said Chris Stark, chief executive of the UK Government's Climate Change Committee (CCC) advisory body, said most of his organization. Use carbon neutral only when referring to carbon emissions.Jim Watson, a professor of energy policy at University College London (UCL), agrees with the definition of the CCC, but he adds that "unfortunately" there is no generally agreed definition for this term.

Prof Jim Skea of ​​Imperial College London told BBC News that they are But net zero has a narrower use, focusing on direct greenhouse gas emissions across countries, while carbon neutrality is broader and used by companies and cities. Products and services.Small modular reactors (SMRs)Mr. Johnson wants new nuclear power for the UK. But history has shown that construction of large nuclear power plants is often overdue and budget.Many manufacturers are now trying to develop small modular plants into A "set of parts" that can be assembled on-site. The idea is that factory-built modules will be built to size to reduce costs. But some experts are highly skeptical of the idea.


Hydrogen energy

Hydrogen is the lightest element on the planet. When used as an energy source, no direct carbon is emitted.Can be used either in a fuel cell or in an internal combustion engine.Industries hope that hydrogen will replace the burning natural gas. And some transportation experts, hydrogen fuel cells will be used to power more vehicles.A fuel cell is a smart device that converts chemical energy into electricity. This can be said to drive a truck. Many fuel cells combine hydrogen and oxygen to produce electricity, with water and heat as their by-products.The key question is whether hydrogen used for energy comes from fossil gas. The key process for producing hydrogen this way, known as steam reforming, also releases problematic and expensive carbon dioxide.Hydrogen can also be produced by "separating" the water using clean wind energy. But more expensive



Nuclear fusion

A typical nuclear power plant relies on a process called fission in which heavy chemical elements are separated to produce lightweight substances.
But nuclear fusion works by combining two light elements to make it heavier.
It's an attempt to simulate the process of the sun here on Earth. Nuclear fusion has been a scientist's dream for decades, because like the sun, it can act as a limitless source of energy.Additional attractions include cheap fuel, relatively little radioactive waste, and no greenhouse gas emissions. But getting more energy than you put in is still a huge challenge, and since 1950 it has been dubbed "30 years away".COP meetingThis time next year - postponed from 2020 as Covid-19 - the UK will hold a major conference of global leaders called COP26, where representatives from countries around the world agree that they What will be done to stop climate change?

COP stands for Conference of the Parties.The countries that have signed the United Nations Framework Convention on Climate Change (UNFCCC) will attend in 1992.This year's meeting will be the 26th time, which is why it is called COP26.NDCsNext month, Prime Minister Boris Johnson will hold a virtual summit in which leaders will be asked to present their NDC for tackling climate change.The NDC is a nation-imposed contribution. These are voluntary proposals from countries to reduce their own emissions.The focused time frame is up to 2030, and if the UK wants to encourage other countries to scale down to equal this challenge, Mr Johnson will have to make an ambitious commitment with far-reaching implications across the economy.



Carbon budget

This is a limitation imposed on the total amount of greenhouse gas that can be emitted over a given period of time. The UK uses a carbon budget in line with its strategy of transitioning to a low-carbon economy.The next budget, due next month, will run for the UK until 2037 as it should be net zero by 2050.
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