Global Citizenship - 4GL1 PearsonEdexcel

Technology, Energy And Climate Change

Gbogbo ọrọ náà

Every serious plan for limiting climate change is, in the end, a list of machines. Insulation and heat pumps in buildings, solar panels and turbines on the grid, batteries to hold the electricity until the evening, barriers to hold back the sea when the weather wins anyway. The politics decides how fast they are built; the engineering decides whether they work at all.

This lesson looks at three families of technology: the ones that let us use less energy, the ones that let us generate energy without burning fossil fuels, and the ones designed to cope with the warming that is already unavoidable. For each you will weigh the genuine advance against the local cost, because almost every one of these technologies is welcomed in the abstract and argued over on the site where it is actually built.

Ebumnobi

  1. Energy-saving technologies developed in response to climate change, such as energy-efficient appliances, buildings and towns
  2. New energy technology developed as an alternative to fossil fuels, including solar, wind and nuclear power sources, and the associated local issues
  3. Technologies needed to tackle or adapt to future climate change, such as carbon capture and storage (CCS) and flood barriers

Maapụ uche

E seela isiokwu a ka ị hụ otu echiche si ejikọta.

Mepee maapụ uche na ngwa

Kaadị ncheta

Omume ncheta ngwa ngwa n'ihe a na-anwale n'isiokwu a.

Mee omume kaadị ndị a na ngwa

Akwụkwọ Ọmụmụ

The cheapest unit of energy is the one never used, so the first family of climate technology is not about generating power at all. It is about needing less of it for the same result. This is called energy efficiency, and it operates at three scales: the appliance, the building, and the settlement.

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Nnyocha Ọmụmụ

Ekele diri gi maka imecha ihe karịrị na Technology, Energy And Climate Change. Ugbu a na ị na-enyochakwa isi echiche na echiche ndị dị mkpa, ọ bụ oge iji nwalee ihe ị ma. Ngwa a na-enye ụdị ajụjụ ọmụmụ dị iche iche emebere iji kwado nghọta gị wee nyere gị aka ịmata otú ị ghọtara ihe ndị a kụziri.

Ị ga-ahụ ngwakọta nke ụdị ajụjụ dị iche iche, gụnyere ajụjụ chọrọ ịhọrọ otu n’ime ọtụtụ azịza, ajụjụ chọrọ mkpirisi azịza, na ajụjụ ede ede. A na-arụpụta ajụjụ ọ bụla nke ọma iji nwalee akụkụ dị iche iche nke ihe ọmụma gị na nkà nke ịtụgharị uche.

Jiri akụkụ a nke nyocha ka ohere iji kụziere ihe ị matara banyere isiokwu ahụ ma chọpụta ebe ọ bụla ị nwere ike ịchọ ọmụmụ ihe ọzọ. Ekwela ka nsogbu ọ bụla ị na-eche ihu mee ka ị daa mba; kama, lee ha anya dị ka ohere maka ịzụlite onwe gị na imeziwanye.

  1. Which of the following is an example of energy-saving technology rather than energy generation? A) An offshore wind farm B) A heat pump replacing a gas boiler C) A nuclear reactor D) A rooftop solar panel Answer: B
  2. What does the term 'intermittency' describe in relation to solar and wind power? A) The cost of building the generator B) The fact that output depends on weather and time of day C) The distance electricity travels along cables D) The lifetime of the equipment Answer: B
  3. Carbon capture and storage works by: A) Converting carbon dioxide directly into electricity B) Separating carbon dioxide and injecting it into deep underground rock C) Planting trees around industrial sites D) Filtering carbon dioxide out of seawater Answer: B
  4. Which of these is an adaptation technology rather than a way of cutting emissions? A) A movable flood barrier B) An LED lightbulb C) A wind turbine D) Loft insulation Answer: A
  5. Which of the following is the most commonly raised local objection to an onshore wind farm? A) It releases carbon dioxide while operating B) Its visual impact on the landscape and noise for nearby homes C) It produces radioactive waste D) It cannot be connected to an electricity grid Answer: B

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Rue ajuju ndi a n'ime ngwa ahu

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