evidence: It was the year 1958, to be precise, when NASA first observed that changes in the solar orbit of the earth, along with alterations to the earth’s axial tilt, are both responsible for what climate scientists today have dubbed as "warming" (or "cooling," depending on their agenda). In no way, shape, or form are humans warming or cooling the planet by driving SUVs or eating beef, in other words. [...] As for earth’s obliquity, or its change in axial tilt, the below two images (Robert Simmon, NASA GSFC) show the degree to which the earth can shift on both its axis and its rotational orientation. At the higher tilts, earth’s seasons become much more extreme, while at lower tilts they become much more mild. A similar situation exists for earth’s rotational axis, which depending on which hemisphere is pointed at the sun during perihelion, can greatly impact the seasonal extremes between the two hemispheres. Based on these different variables, Milankovitch was able to come up with a comprehensive mathematical model that is able to compute surface temperatures on earth going way back in time, and the conclusion is simple: Earth’s climate has always been changing, and is in a constant state of flux due to no fault of our own as human beings.