Thread by @OMGno2trump

Here's a short lesson on weather, climate & climate change. The first thing to know is the difference between weather & climate.
Weather:
- it's what happening environmentally at a "particular place" at a "particular time"
- the weather today is hot, cold, rain, snow, ....
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Climate:
- climate is the "average" of the weather
- take the weather at particular place and average it over time (often a year)
- a hot climate is, on average, hotter than a cold climate
- example, the climate in Phoenix, Arizona is hot & dry, even if it's raining or snowing
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Climate change:
- this is when you take the average yearly climate and analyze it over many years
- weather information is easy to collect, and gets better every year with new technology
- climate is easy to calculate, it's just an average
- climate change is easy to graph
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Global warming:
- it's what you learn when you look at the climate change graph over many years
- on average, all the weather from all places on earth, averaged every year leads to a graph that shows the world is getting warmer
- this are facts, not an opinions
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Is there any debate:
- not really, the vast majority of scientists all agree that the world is getting warmer, that is not debatable by reasonable people
- over the past 50 years, the average global temperature has increased at the fastest rate in recorded history
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Here's the situation:
- 15 hottest years in NASA’s 134-year record have occurred since 2000
- experts see the trend of global warming accelerating
- the primary cause is burning hydrocarbons (oil, gasoline, etc.)
- chemistry is complicated
- but knowing we're causing it is simple