energy and climate change (1) Flashcards
(14 cards)
US, Canada, Australia, and several european countries are _______-income countries.
Asia, middle-east countries are _________-income countries.
SS africa and some parts of asia are ____-income countries.
high
upper-middle
low
in 2000, 23-24 million tons of co2 was emitted.
in 2020, ___ million tons of co2 was emitted, a ____% increase in 20 years.
35; 50
Intergovernmental Panel on Climate Change (IPCC) reported that atmospheric co2 conc. in ____ was higher than any time in the last 2 million years.
2019
perfect global temp is?
18 degree celcius
Global surface temperature increased by around ____ degree celsius since industrialisation
1
how is incease in temp associated with heat?
increase in temp –> increase frequency and intensity of heat
natural disasters increase/decrease over the years?
increase
2 set periods for natural disasters. what are they?
set 1: 1980-1999
set 2: 2000-2019
- more natural disasters (7400 vs 4000)
- more deaths (1.23m vs 1.19m)
- more financial losses ($3 trillion vs $1.5 trillion)
how many types of greenhouse gases are there?
6
- CO₂
- CH₄
- N₂O
- CFCs
- HFCs
- H₂O
global warming potential (GWP) for methane is higher or lower than CO₂?
higher
**Methane has a GWP of about 25 times that of CO₂ over a 100-year period.
main greenhouse gas is ___.
CO₂ - makes up 76% of global greenhouse gas emissions
how can we avoid climate change? by limiting what?
limiting global temperature rise to below 1.5°C
does Amazon rainforest produce or absorb more CO2?
according to National Institute for Space Research, some parts of Amazon produce more CO2 than they absorb
what is the popular method of power generation?
solar photovoltaics (solar panels)
*** rapid growth, decreasing costs, and sustainability as a renewable energy source
