This page is about energy in 2 main forms: fuel and electricity.
The majority of energy comes from fossil fuels which cause climate change.
Limits to other energy sources
|Hydroelectricity||Only viable in a few parts of the world|
|Geothermal||In most parts of the world, is only suited for heating and cooling|
|Solar||1. Intermittant (not available at night)|
2. Manufacturing is too resource-intensive
2. Turbine construction is too resource-intensive
3. Requires a lot of space, usually far from where people live
|Nuclear||Limited supply of uranium-235|
+ Safety concerns
|Biomass waste||Limited supply|
+ Competes with food, contributing to hunger and deforestation
Can this demand (or at least, most of it) be met without fossil fuels?
Short answer: No.
Long answer: Not without major technological breakthroughs.
Even worse: Most of the world is currently living in poverty. Suppose every country was as developed as western countries: Global energy demand would be more than double:
But there is good news
If we did things differently, then...
- Everyone on the planet could have a decent quality of life, and
- Energy consumption would be just a fraction of what it is today.
- Plus, people would be less overworked.