Carbon dioxide is emitted by a variety of natural and man made systems. Energy generation as currently deployed uses a great deal of CO2 producing sources such as coal. In a recent Science piece there is an alternative proposed to recycle the CO2 for zero emissions.
They state:
In contrast, NET Power, the startup backing the new plant, says it expects to produce
emission-free power at about $0.06 per kilowatt-hour. That's about the same cost as
power from a state-of-the-art natural gas-fired plant—and cheaper than most
renewable energy. The key to its efficiency is a new thermodynamic cycle that swaps
CO2 for the steam that drives turbines in conventional plants. Invented
by an unlikely trio—a retired British engineer and a pair of technology geeks who
had tired of their day jobs—the scheme may soon get a bigger test. If the
prototype lives up to hopes, NET Power says, it will forge ahead with a full-scale,
300-megawatt power plant—enough to power more than 200,000 homes—which
could open in 2021 at a cost of about $300 million. Both the company and CCS experts
hope that the technology will then proliferate. “This is a game-changer if they
achieve 100% of their goals,” says John Thompson, a carbon capture expert at the
Clean Air Task Force, an environmental nonprofit with an office in Carbondale,
Illinois.
If this works it is a great step forward and involves no Carbon tax or belief in world ending events.
I guess something else will come along. Some people need to have an event to end the world and somehow scientists and engineers always burst their balloon. Who was that guy who said population would end life as we know it?
The only real ender is a bunch of nuclear weapons...remember that!