Energy
not renewable sources of energy:
oil and coal.
High level of CO2 emissions
greenhouse effect
global warming and climate changes
They are going to finish soon or later.
looking for alternative
renewable sources
eolic power, water power, solar power.
reducing mobility,
using the alternative source of power,
changing production model,
reducing the production of plastic,
improving recycling.
Solutions?
Another possibility is nuclear power but it's dangerous first of all nuclear power plants are not safe enough yet and nuclear incident can have terrible consequences.
And we haven't found an effective way to dispose nuclear waste.