Greenhouse gases in the air, mainly carbon dioxide, methane and water vapour, trap radiation from the Sun and act like a thermal blanket around the planet. Without the greenhouse effect, the Earth would have an average temperature of -18 °C and be covered in ice. Life as we know it would not be able to survive.
The following is a list of 10 steps YOU can take to reduce greenhouse gas emissions:
- Reduce, Reuse, Recycle.
- Use Less Heat and Air Conditioning.
- Replace Your Light Bulbs.
- Drive Less and Drive Smart.
- Buy Energy-Efficient Products.
- Use Less Hot Water.
- Use the "Off" Switch.
- Plant a Tree.
Greenhouse gases (GHG) include carbon dioxide, water vapor, methane, ozone, nitrous oxide and fluorinated gases. These molecules in our atmosphere are called greenhouse gases because they absorb heat. There may not be much of some of these gases in our atmosphere, but they can have a big impact.
Greenhouse gases have far-ranging environmental and health effects. They cause climate change by trapping heat, and they also contribute to respiratory disease from smog and air pollution. Extreme weather, food supply disruptions, and increased wildfires are other effects of climate change caused by greenhouse gases.
Ozone isn't a typical greenhouse gas. It has two distinct functions in the atmosphere. High in the stratosphere, it absorbs ultraviolet light from the sun and protects the earth. Near the ground, it serves as a pollutant and contributor to smog and also has greenhouse characteristics.
The Role of Human Activity
The panel also concluded there's a better than 95 percent probability that human-produced greenhouse gases such as carbon dioxide, methane and nitrous oxide have caused much of the observed increase in Earth's temperatures over the past 50 years.Drive Less
- Go easy on the gas and brakes — driving efficiently can help to reduce emissions.
- Regularly service your car to keep it more efficient.
- Check your tires.
- Air conditioning and intensive city driving can make emissions creep up.
- Use cruise control on long drives — in most cases, this can help to save gas.
Globally, the average is closer to 4 tons. To have the best chance of avoiding a 2℃ rise in global temperatures, the average global carbon footprint per year needs to drop under 2 tons by 2050. Lowering individual carbon footprints from 16 tons to 2 tons doesn't happen overnight!
Electricity production (30 percent of 2014 greenhouse gas emissions) – Electricity production generates the largest share of greenhouse gas emissions. Approximately 67 percent of our electricity comes from burning fossil fuels, mostly coal and natural gas.
In 2018, total U.S. electricity generation by the electric power industry of 4.17 trillion kilowatthours (kWh) from all energy sources resulted in the emission of 1.87 billion metric tons—2.06 billion short tons—of carbon dioxide (CO2). This equaled about 0.99 pounds of CO2 emissions per kWh.
Your carbon footprint is the amount of carbon dioxide released into the air because of your own energy needs. You need transportation, electricity, food, clothing, and other goods. Your choices can make a difference.
Scientists measure the amount of greenhouse gases in the atmosphere in several ways. They use satellites and other instruments to measure the amount of greenhouse gases in the air all around the world. They also collect samples of air from specific places and then analyze these samples in a laboratory.
Carbon dioxide emissions into the atmosphere, and the emissions of other GHGs, are often associated with the burning of fossil fuels, like natural gas, crude oil and coal. While this is harmful to the environment, carbon offsets can be purchased in an attempt to make up for these harmful effects.
The annual impact from eating a specific food is calculated by multiplying the impact of one serving of that food by the times it is eaten in a year, based on the weekly estimates submitted by the user. These are then compared with the emissions of other daily habits.
CO2
| 400-1,000ppm | Concentrations typical of occupied indoor spaces with good air exchange |
| 1,000-2,000ppm | Complaints of drowsiness and poor air. |
| 2,000-5,000 ppm | Headaches, sleepiness and stagnant, stale, stuffy air. Poor concentration, loss of attention, increased heart rate and slight nausea may also be present. |
The normal range for CO2 is 23 to 29 mEq/L (milliequivalent units per liter of blood). The blood test often measures blood pH along with CO2 levels to further determine the cause of your symptoms. Blood pH is a measurement of acidity or alkalinity. Alkalosis is when your body fluids are too alkaline.
Carbon dioxide will be produced when
yeast respires. This is a gas.
The rate of respiration in yeast
- Set up an inverted measuring cylinder in a water bath so that the cylinder is full of water and clamp into position.
- Add 20 cm 3 of water to 1 g yeast and 0.5 g glucose and stir.
