Tag Archives: carbon dioxide

Understanding Global Warming and Cold Weather

31 Sunday Dec 2017

Posted by in About Reno, Generational, Government, Government Regulation, Green, Health, Higher Education, Politics, Science, solar, Taxes, Technology, Universities

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Few things define a person’s intelligence than the ability to understand complex issues. Few things define a person’s stupidity than to take a complex issue and use a short-circuit of logic to make it sound simple.

Every winter some people prove their lack of intelligence and say something like, “I just shoveled five inches of global warming off my driveway.” This makes other small-minded people giggle, and the speaker feel like he has just proved he is smarter than all the intelligent, educated people.

He is not.

Global Warming and Winter Weather 101
To understand the threat of global warming a person first has to understand the effect of the Earth’s 23.5° tilt of its axis off the solar plane. I just lost 30% of the stupid people.

The Earth’s tilt causes one hemisphere (north or south) to receive more radiant energy than the other in the few months around the solstices. This means that one of the polar regions is receiving external heat from the Sun, and the other is receiving no solar energy because it is in darkness. I’m about to lose another 20% of the stupid people.

The cold air in the polar region would stay exactly where it is if it weren’t for the Laws of Thermal Dynamics. Ah, there they go. Okay, were down to the last 50% of the stupid people.

Among other things, thermal dynamics explain the behavior of the energy exchange between two substances, and Fluid Dynamics help to explain how a difference in temperature in a substance like air causes cooler air to mix with warmer air. I just lost another 25% of the stupid people. It was the ‘fluid dynamics’ thing, wasn’t it?

The greater the difference in temperature, the greater, or more actively, the warmer air will mix with the cooler air. If the last 25% of stupid people can just hang on, I’m almost there.

Because there is more carbon dioxide suspended in our atmosphere, it absorbs more of the solar radiation, and that increases the temperature of the air. That causes more water to vaporize and it also absorbs solar radiation and that further increases the temperature of the air. Damn, I lost another 10%.

During the northern hemisphere’s winter, the north polar region has a lot of cold air that desperately wants to mix with the warm air to the south to equalize the temperature between cold and warm. The greater the temperature difference, the more powerful the movement of the air toward each other. Okay, l just lost another 10%.

I see the blank faces of the last 5% of stupid people. Cold air is cold air. It remains cold as it moves toward the warm air. It is only after it mixes with warmer air (i.e.; storms) that the temperature of the two air masses begin to equalize. Oh, there go the last 5% of the stupid people.

For the rest of us, global warming creates warmer air masses and that can lead to the increased movement between the two air masses resulting in stronger winds and more cold air moving farther south. Also, warmer air can retain more water vapor, so when cold and warm air meet, the storms can result in higher precipitation.

Can Venus Be Made Habitable?

25 Monday Dec 2017

Posted by in Green, Science, solar, Space, Technology, Travel

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Venus: Too hot, too much atmosphere

Venus may be the future of Earth and may also hold the answers to global warming.

Earth’s atmosphere is 78 percent nitrogen, 21% oxygen, (O₂,) and 1% other gases including carbon dioxide (CO₂) and water vapor. Even though CO₂ is considered a trace gas in our atmosphere it is a major player in the absorption of energy from the Sun. Nitrogen and oxygen are ‘invisible’ to the Sun’s radiation, so the energy from the Sun passes through the two gases without being absorbed.

The atmosphere of Venus 96% CO₂ and 3.5% nitrogen, with 0.5% other gases, including water vapor. Venus’ atmosphere is also extremely dense. The pressure at the surface of Venus is the same as the pressure at 1,000 meters (3,000 ft.) under the surface of Earth’s ocean.

Venus is also hot. The CO₂ absorbing the Sun’s energy retains the heat in a runaway greenhouse effect that keeps the temperature at 462 °C (864 °F,) both day and night.

The interesting, and terrifying fact is that the carbon found on Earth is roughly equal to the carbon found on Venus. The difference is that Earth stores its carbon in the ocean, and in calcite deposits that consists of dead marine life that settled in the bottom of an ocean and became a sedimentary rock formation.

There is also a nitrogen problem. Even though nitrogen makes up 3.5% of Venus’ atmosphere, it is four times the amount of nitrogen in Earth’s atmosphere.

Venus could be Earth Like if:

  • Almost all of the atmospheric carbon and three-quarters of the nitrogen could be transformed into solid carbon and solid nitrogen.
  • Some of the oxygen from the CO₂ could be liberated for the atmosphere.
  • The rest of the oxygen could be liberated to combine with hydrogen in the upper atmosphere to create water.
  • The Sun’s energy could be reduced (blocked) to allow Venus to cool.
  • Venus’ rotation could be sped up and a slight tilt in the axis to match Earth’s rotation and axis.

Numbers 4 and 5 are beyond our current technology, however, solving the 1 through 3 issues are a matter of finding or creating an organism that could float in venus’ upper atmosphere and convert CO₂ to O₂. This could help scientists find a way to remove the excess carbon from Earth’s atmosphere and prevent global warming from becoming a runaway greenhouse effect on our planet.

It should be noted that Earth’s temperature is a delicate balance between incoming and outgoing energy. We don’t know at what point a runaway greenhouse effect kicks in and destroys the energy balance that maintains a near constant temperature on Earth; however, there is a point of no return where evaporating water vapor and CO₂ will absorb more energy from the Sun than what is radiated back into space. If we reach that point, Earth will become another Venus and the human race will cease to exist.