There is heat(high temperature) in the earths crest; from where it comes?
107641
Almost all of Earth's internal temperature is radiated outward from its molten core. There is also some heating, particularly nearer the Earth's surface, resulting from physical stresses brought on by Earth's rotation, motion around the Sun, and by gravitational interaction with the Moon.
19949
Thed center of the world is the very hot core of the earth. Not a country or a city.
49283
The heat is radiated from the core of the Earth - from the heat buildup from when the Earth was forming - the conversion of gravitational energy to heat.  It is cooler now than when the planets were forming, but it's still pretty dang hot at the core, and that's the heat that warms up the asthenosphere.
1156287
it's the core of the earth. lava. melted rock.etc
476234
Geothermal energy is heat in the earth.  We can observe it emerging to earth's surface around volcanoes, vents, hot springs, etc.
1173782
Even though I like Oz's answer, it is actually the flow of magma in the Earth's mantle on average about 30 miles below the surface, where molten rock flows from high to low, nearing the earth's outer core where the temprature reaches to near 10000 degrees F.  Another heating element (or actually energy element, that has a side effect of heating) is radioactive decay.  Though most of the Earth's heat energy is released throught the much thinner parts of the crust that makes up the ocean floors.
44265
The starry night.  Heat from the surface of the earth can rise without clouds to keep it down.  It is called "radiational cooling.
105710
To expand on Valentin's answer:\n\nFirst, realize that most atmospheric heating comes from the surface of the earth; the atmosphere itself is transparent to most frequencies of light energy coming from the Sun.  It's when that radiation hits the surface of the Earth and gets converted to infrared, i.e. heat, radiation that the atmosphere gets heated.\n\nNow, the "physics problem":  Pressure, density and temperature are all related by gas laws.  As the warm air rises, it expands, without taking on heat from its environment, and thus cools.  \n\nNext, add the "natural phenomenon".  Higher altitude air is generally drier than lower altitude air; water vapor helps lock in the heat radiating from the surface; hence higher altitude air locks in less heat than lower altitude air.  And, it's true that high altitude winds result in the air absorbing less heat from the surface.
235856
http://www1.eere.energy.gov/geothermal/glossary.html#g\n\nGeothermal\nOf or relating to the Earth's interior heat.\n\nGeothermal Energy\nThe Earth's interior heat made available to man by extracting it from hot water or rocks.\n\nGeothermal Gradient\nThe rate of temperature increase in the Earth as a function of depth. Temperature increases an average of 1° Fahrenheit for every 75 feet in descent.\n\nGeothermal Heat Pumps\nDevices that take advantage of the relatively constant temperature of the Earth's interior, using it as a source and sink of heat for both heating and cooling. When cooling, heat is extracted from the space and dissipated into the Earth; when heating, heat is extracted from the Earth and pumped into the space.
585860
there is a hot core in the center of the earth, this escapes from fissures in the earths crust,finding its way up and out of the earth surface through fractures in the platelets. on these platelets the lava flows and when cooled becomes rock hard. when this happens in a volcano type of environment the pressure builds up over time, and the result is the "Blowing of the top/side" of the volcano, causing molten lava to flow, often causing damage to human, and plant life, that is around the base of the volcano..
425682
The Core: The Sun's core has a tremendously high temperature and pressure. The temperature is roughly 15 million °C. At this temperature, nuclear fusion occurs, turning four hydrogen nuclei into a single helium nucleus plus a LOT of energy. This "hydrogen burning" releases gamma rays (high-energy photons) and neutrinos (particles with no charge and almost no mass). \n\nThe Radiative Zone (or radiation zone): The next layer out from the core is this zone which emits radiation. This radiation diffuses outwards. The temperature ranges from 15 million °C to one million °C. It may take photons of radiation millions of years to pass through the radiative zone, as they gradually make their way outwards. \n\nThe Convective Zone: In this next layer, photons continue to make their way outwards via convection (towards lower temperature and pressure). The temperature ranges from one million °C to 6,000 °C. \n\nThe Photosphere: This is the lower atmosphere of the Sun and the part that we see (since it emits light at visible wavelengths). This layer is about 300 miles (500km) thick. The temperature is about 5,500 °C. \n\nThe Chromosphere: This reddish layer is an area of rising temperatures. The temperature ranges from 6,000 °C (at lower altitudes) to 50,000 °C (at higher altitudes). This layer is a few thousand miles (or kilometers) thick. It appears red because hydrogen atoms are in an excite state and emit radiation near the red part of the visible spectrum. \n\nThe Chromosphere is visible during solar eclipses (when the moon blocks the Photosphere). \n\nThe Corona: This is the outer layer of the Sun's atmosphere. The corona extends for millions of miles and the temperatures are tremendous, reaching one million °C. \n\nHoles in the corona occur where the Sun's magnetic field loops out into space. These coronal holes may be the source of the solar wind, a stream of energetic particles that permeate the Solar System.
1035134
The Atmosphere is hot(~~)
509040
The Earth is not Hollow. Below the 60 Km crust is the semi-liquid Mantle. The core at the center is Solid.
977025
Lord Kelvin back in the 19th Century showed that the Earth would have radiated all its original heat from formation long ago.  He therefore concluded that there must be nuclear processes occurring in the core which keep Earth's interior warm (who said nuclear energy was bad).  When these processes stop, the Earth will cool down.  I don't know (who does) but I expect that this will happen long before our sun's fuel is spent, although there's no need to worry - it won't be any time soon.\n\nIncidentally, it is extraordinary to think that we actually know remarkably little about the processes occurring in the core of the Earth and we have scarcely even scratched the surface in our exploration of our own planet.  We actually know far more about what happens in the core of the sun!
129623
The dynamo theory (that the earth is maganetic) is actually due to the fact that the outer crust is molten iron.  This iron is moving around inside the earth at very high temperatures.  Physics tells us that moving metals will create  a magnetic field.  This is why we have the magnetic field around the earth.
845575
Well, the solar energy received by Earth is considered a constant. The heat from residual internal sources is considered to be minimal compared to the amount received by the Sun. Also the idea of a constant temperature is relative to the scale of time and space you choose. I'm not going into variations possibly due to sunspot occurrence, orbital, precession, axis wobble, volcanic, meteor impacts, nor seasonal changes.\nHere is a general model of energy transfers, heating and temperature.\nThe amount and wavelength of energy absorbed by a substance or blackbody causes it to heat to a particular temperature and radiate at a particular wavelength. Though the atmosphere is of a layered, mostly permanent composition and the Earth surface is not contiguous, this helps understand the effect of radiant energy on Earth. The reactions of the Sun make it so hot the radiant energy is essentially short wave (high frequency). Consider 100 units of solar sw received by the Earth (insolation), the atmosphere absorbs 25 (mostly due to ozone in the stratosphere) and reflects or scatters 25, while the water/terrain at the surface absorbs 45 and reflects 5. As the terrain and atmospheric gases absorb the sw energy they heat, but not too hot, and radiate long wave energy (low frequency).\nThe Earth surface radiates 104 units of lw - 100 to the atm and 4 out to space. The atm radiates 154 units - 88 back to Earth and 66 out to space. How can this happen and where does the additional energy come from?\nThere are several parts of this development.\nPart of the reason is the atm is a layered, mostly gaseous composition that exchanges energy amongst the layers, the Earth surface, and out to space. Another part is the other ways energy is transferred, such as the convection and turbulent flow of gases that transfer latent and sensible heat between the surface and atmosphere. You experience this when water is transported and goes through its various phases to develop the local weather.\nLets give these processes values. Convective processes values account for 22 units of latent heat and 7 of sensible heat.\nNow tally the total energy absorbed by the surface as 45 + 88 = 133 and the atm as 100 + 25 = 125. The convective processes ensure the energy balance by transferring 29 units of energy from the surface to the atm to obtain the 104 units and 154 units mentioned earlier. This leads to development of a mean global temperature as we know it at 15 deg C.\nNotice how much the atm is relied upon to transfer energy out to space? Changing the atm composition with additional variable/ long term gases, particulates, and aerosols can alter the events.\nParticulates and some gases can cause more reflection at the top of the atm resulting in less insolation, less heating, and lower temperature. Addition of some gases into the atm can increase the absorbtion of lw radiation or prevent it from being transferred to space. When it comes back to the surface, additional heating and a temperature increase will result if the convective processes cannot adjust for the increased energy.
1166809
our earth would burn due its heat along with the sun's heat