to a Tweet that I received this morning. The Tweet was in response to a graphic showing relative contributions to Earth’s radiative (heating or cooling) system. In that well-understood chart within the climate science community (this link), greenhouse gases are shown to be the dominant radiative forcing mechanism for Earth’s climate system. The aforementioned Tweet seems to suggests that the sun’s influence is undervalued or that climate scientists mysteriously misunderstand its role. It was worth cutting short my morning workout to debunk this common misconception.

The sun is vital to Earth’s climate system.NASA

The sun is the vital energy source for our planet’s weather and climate system. Without it, things would be very different around here. The sun is hot. We see it and feel its heat. For many people, they understand the concept of sitting next to a fire or heater. The warmth that they feel likely informs their interpretation of how the Earth is warmed by the sun. However, there is far more to the story.

The Greenhouse Effect is very important for earthlings. As Colorado State University Professor Scott Denning says, “we survive night” because of it. What is the Greenhouse Effect? It is an analogy used to describe how the Earth’s surface is heated due to certain things being present in the atmosphere like greenhouse gases, water vapor, aerosols, and clouds. The atmosphere behaves like a very interesting filter. The sun sends energy to Earth at different wavelengths of the electromagnetic spectrum. Thankfully for us, much of the harmful ultraviolet radiation is absorbed by the stratospheric ozone layer. Also thankfully for us, visible light passes through much of the atmosphere. As shortwave energy (visible light and shortwave infrared) reaches the surface of the Earth, it is absorbed.

Global energy budget and Greenhouse Effect.NASA

At this point, we are only halfway through the story. Like almost everything on the planet with a measurable temperature, the Earth’s surface emits longwave infrared (heat) energy back to the atmosphere (graphic above). As an example of this radiative process, there are mornings in which some much heat is radiated away from Earth that the surface cools to the dewpoint temperature. The dewpoint temperature is the point at which the air becomes saturated. When this happens, you might notice fog or dew on the ground.

What happens to the longwave energy emitted from the surface? Some of it escapes to space, but a significant portion is absorbed by Greenhouse gases or clouds. It doesn’t stop there, however. The gases or clouds emit heat back to the surface or into the atmosphere. This emitted radiation adds to the surface warming from sunlight. This is the Greenhouse Effect in a nutshell. According to the American Meteorological Society’s (AMS) Glossary of Meteorology, “as a result of the greenhouse effect, Earth’s annual mean surface temperature of 15°C is 33°C higher than an equally reflective planet in Earth’s orbit with no atmosphere.” Venus and Mars have very carbon dioxide-rich atmosphere. However, Mars is relatively cold and has frozen surface because its atmosphere is so thin, and there is little water vapor or methane (also Greenhouse gases). Venus, on the other hand, has roughly 154,000 times the carbon dioxide of Earth’s atmosphere and a surface temperature hot enough to melt lead, according to NASA.

The AMS Glossary also makes a point that I routinely share with my students at the University of Georgia:

The term “greenhouse effect” is something of a misnomer in this context. It is used as an analogy to the trapping of heat by the glass panes of a greenhouse, which let sunlight in. In the atmosphere, however, heat is trapped radiatively, while in an actual greenhouse, heat is mechanically prevented from escaping (via convection) by the glass enclosure.

These processes are very complex, and there is much more to the story than I have written here. I hope this clarifies that “yes” the sun is vital to Earth, but “no” it is not the only part of Earth’s “heating-cooling” system. The energy that the Earth receives from the sun varies, and one of the most significant reasons is the 11-year sunspot cycle. According to a NASA website,

The total solar irradiance (TSI), improperly called “solar constant” until a few years ago, has been found to change about 0.1% in an 11-year solar sunspot activity. The current most accurate TSI values from the Total Irradiance Monitor (TIM) on NASA’s Solar Radiation and Climate Experiment ( SORCE ) is 1360.8 ± 0.5 Watts per meter squared during the 2008 solar minimum as compared to previous estimates of 1365.4 ± 1.3 W/m2 established in the 1990s.

However, these slight changes to the solar constant are not the major driver of temperature trends that we are now observing in the climate system. I hope this information cleared up any misconceptions and brightened your day.

Solar cycle.NASA

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This post remains in direct action to a Tweet that I got today. The Tweet remained in action to a graphic proving relative contributions to Earth’s radiative( heating or cooling )system. Because well-understood chart within the environment science neighborhood ( this link), greenhouse gases are revealed to be the dominant radiative requiring system for Earth’s environment system. The previously mentioned Tweet appears to recommends that the sun’s impact is underestimated or that environment researchers inexplicably misinterpret its function. It deserved interrupting my early morning exercise to unmask this typical misunderstanding.

The sun is essential to Earth’s environment system. NASA

(********** )(********** )

The sun is the vital force source for our world’s weather condition and environment system. Without it, things would be extremely various around here. The sun is hot. We see it and feel its heat. For many individuals, they comprehend the principle of sitting beside a fire or heating unit. The heat that they feel most likely informs their analysis of how the Earth is warmed by the sun. Nevertheless, there is much more to the story.

The Greenhouse Impact is extremely essential for earthlings. As Colorado State University Teacher Scott Denning states, “we make it through night” due to the fact that of it. What is the Greenhouse Impact? It is an example utilized to explain how the Earth’s surface area is heated up due to particular things existing in the environment like greenhouse gases, water vapor, aerosols, and clouds. The environment acts like a really fascinating filter. The sun sends out energy to Earth at various wavelengths of the electro-magnetic spectrum Luckily for us, much of the hazardous ultraviolet radiation is soaked up by the dizzying ozone layer. Likewise the good news is for us, noticeable light travel through much of the environment. As shortwave energy (noticeable light and shortwave infrared) reaches the surface area of the Earth, it is soaked up.

International energy spending plan and Greenhouse Impact.

(**************
) NASA

At this moment, we are just midway through the story. Like practically whatever on earth with a quantifiable temperature level, the Earth’s surface area gives off longwave infrared (heat) energy back to the environment (graphic above). As an example of this radiative procedure, there are early mornings in which some much heat is radiated far from Earth that the surface area cools to the dewpoint temperature level. The dewpoint temperature level is the point at which the air ends up being saturated. When this occurs, you may see fog or dew on the ground.

What occurs to the longwave energy discharged from the surface area? A few of it leaves to area, however a substantial part is soaked up by Greenhouse gases or clouds. It does not stop there, nevertheless. The gases or clouds give off heat back to the surface area or into the environment. This produced radiation contributes to the surface area warming from sunshine. This is the Greenhouse Impact in a nutshell. According to the American Meteorological Society’s (AMS) Glossary of Meteorology, “as an outcome of the greenhouse impact, Earth’s yearly mean surface area temperature level of 15 ° C is 33 ° C greater than a similarly reflective world in Earth’s orbit without any environment.” Venus and Mars have extremely carbon dioxide-rich environment. Nevertheless, Mars is reasonably cold and has actually frozen surface area due to the fact that its environment is so thin, and there is little water vapor or methane (likewise Greenhouse gases). Venus, on the other hand, has approximately 154,000 times the co2 of Earth’s environment and a surface area temperature level hot sufficient to melt lead, according to NASA

The AMS Glossary likewise makes a point that I consistently show my trainees at the University of Georgia:

The term “greenhouse impact” is something of a misnomer in this context. It is utilized as an example to the trapping of heat by the glass panes of a greenhouse, which let sunshine in. In the environment, nevertheless, heat is caught radiatively, while in a real greenhouse, heat is mechanically avoided from leaving (through convection) by the glass enclosure.

These procedures are extremely intricate, and there is far more to the story than I have actually composed here. I hope this clarifies that “yes” the sun is essential to Earth, however “no” it is not the only part of Earth’s “heating-cooling” system. The energy that the Earth gets from the sun differs, and among the most considerable factors is the 11- year sunspot cycle. According to a NASA site,

The overall solar irradiance (TSI), poorly called “solar consistent” up until a couple of years back, has actually been discovered to alter about 0.1% in an 11- year solar sunspot activity. The existing most precise TSI worths from the Overall Irradiance Screen (TIM) on NASA’s Solar Radiation and Environment Experiment (SORCE ) is 1360.8 ± 0.5 Watts per meter squared throughout the 2008 solar minimum as compared to previous price quotes of 1365.4 ± 1.3 W/m2 developed in the 1990 s.

Nevertheless, these minor modifications to the solar constant are not the significant motorist of temperature level patterns that we are now observing in the environment system. I hope this info cleaned up any misunderstandings and brightened your day.

Solar cycle.
NASA

” readability =”76
396141543383″ >

This post remains in direct action to a Tweet that I got today. The Tweet remained in action to a graphic proving relative contributions to Earth’s radiative (heating or cooling) system. Because well-understood chart within the environment science neighborhood ( this link ), greenhouse gases are revealed to be the dominant radiative requiring system for Earth’s environment system. The previously mentioned Tweet appears to recommends that the sun’s impact is underestimated or that environment researchers inexplicably misinterpret its function. It deserved interrupting my early morning exercise to unmask this typical misunderstanding.

.

.

The sun is essential to Earth’s environment system. NASA

.

.

The sun is the vital force source for our world’s weather condition and environment system. Without it, things would be extremely various around here. The sun is hot. We see it and feel its heat. For many individuals, they comprehend the principle of sitting beside a fire or heating unit. The heat that they feel most likely informs their analysis of how the Earth is warmed by the sun. Nevertheless, there is much more to the story.

The Greenhouse Impact is extremely essential for earthlings. As Colorado State University Teacher Scott Denning states, “we make it through night” due to the fact that of it. What is the Greenhouse Impact? It is an example utilized to explain how the Earth’s surface area is heated up due to particular things existing in the environment like greenhouse gases, water vapor, aerosols, and clouds. The environment acts like a really fascinating filter. The sun sends out energy to Earth at various wavelengths of the electro-magnetic spectrum Luckily for us, much of the hazardous ultraviolet radiation is soaked up by the dizzying ozone layer. Likewise the good news is for us, noticeable light travel through much of the environment. As shortwave energy (noticeable light and shortwave infrared) reaches the surface area of the Earth, it is soaked up.

.

.

International energy spending plan and Greenhouse Impact. NASA

.

.

At this moment, we are just midway through the story. Like practically whatever on earth with a quantifiable temperature level, the Earth’s surface area gives off longwave infrared (heat) energy back to the environment (graphic above). As an example of this radiative procedure, there are early mornings in which some much heat is radiated far from Earth that the surface area cools to the dewpoint temperature level. The dewpoint temperature level is the point at which the air ends up being saturated. When this occurs, you may see fog or dew on the ground.

What occurs to the longwave energy discharged from the surface area? A few of it leaves to area, however a substantial part is soaked up by Greenhouse gases or clouds. It does not stop there, nevertheless. The gases or clouds give off heat back to the surface area or into the environment. This produced radiation contributes to the surface area warming from sunshine. This is the Greenhouse Impact in a nutshell. According to the American Meteorological Society’s (AMS) Glossary of Meteorology , “as an outcome of the greenhouse impact, Earth’s yearly mean surface area temperature level of 15 ° C is 33 ° C greater than a similarly reflective world in Earth’s orbit without any environment.” Venus and Mars have extremely carbon dioxide-rich environment. Nevertheless, Mars is reasonably cold and has actually frozen surface area due to the fact that its environment is so thin, and there is little water vapor or methane (likewise Greenhouse gases). Venus, on the other hand, has approximately 154, 000 times the co2 of Earth’s environment and a surface area temperature level hot sufficient to melt lead, according to NASA

.

The AMS Glossary likewise makes a point that I consistently show my trainees at the University of Georgia:

.

The term “greenhouse impact” is something of a misnomer in this context. It is utilized as an example to the trapping of heat by the glass panes of a greenhouse, which let sunshine in. In the environment, nevertheless, heat is caught radiatively, while in a real greenhouse, heat is mechanically avoided from leaving (through convection ) by the glass enclosure.

.

These procedures are extremely intricate, and there is far more to the story than I have actually composed here. I hope this clarifies that “yes” the sun is essential to Earth, however “no” it is not the only part of Earth’s “heating-cooling” system. The energy that the Earth gets from the sun differs, and among the most considerable factors is the 11 – year sunspot cycle. According to a NASA site,

.

The overall solar irradiance (TSI), poorly called “solar consistent” up until a couple of years back, has actually been discovered to alter about 0.1 % in an 11 – year solar sunspot activity. The existing most precise TSI worths from the Overall Irradiance Screen (TIM) on NASA’s Solar Radiation and Environment Experiment (SORCE) is 1360.8 ± 0.5 Watts per meter squared throughout the 2008 solar minimum as compared to previous price quotes of 1365.4 ± 1.3 W/m2 developed in the 1990 s.

.

Nevertheless, these minor modifications to the solar constant are not the significant motorist of temperature level patterns that we are now observing in the environment system. I hope this info cleaned up any misunderstandings and brightened your day.

.