Even a small change in tilt of the earth's axis would have a profound change in the earth. It would change the length and temperature of our days and seasons. Depending on the angle of tilt, it would melt the polar ice caps or it would lower the earth's temperature causing polar ice caps to increase in size. This in turn would increase or decrease the level of water in the oceans, all of which would dramatically influence our weather.
Some organisms would go extinct because they could no longer survive in new environment; and others would go extinct because they depend for survival on the organisms that have gone extinct.
Many plants would become extinct as well, affecting the food supply of the entire planet and every living soul.
It is quite possible all life as we know it could cease to exist if the earth's tilt were to change. It is also quite possible that new life forms could come into being that could have a positive effect or a disastrous effect on earth's systems.
Even a very "small" change in world tilt would have profound implications.
There are two things that cause it which are the earths orbit and thetilt of the earths axis.
north pole
The earths tilt at its axis
The actual most important cause of Earth's seasons is it's axis.
Well the earth has an imaginary axis going from pole to pole through the middle of the earth called the axis of rotation. This axis is tilted with respect to the orbital plane of the Earth around the Sun. This tilt is the cause of the seasons which are most noticeable far from the equator.
That would most likely cause a very small change in the seasons.
Because it tilts on its axis
Because it tilts on its axis
Climate
There are two things that cause it which are the earths orbit and thetilt of the earths axis.
What? No...the earths axis has been tilted for hundreds of millions if not billions of years. If your question is: Did the earthquake in Chile cause a variation in the tilt of the earth's axis? Then the answer is yes, very slightly, but noticeable.
No. Earth's magnetic field does not affect its axis of rotation.
Because Earths axis is tilted.
intersect
The tilt controls the angle of incidence of sunlight AND the duration of daylight hours.
The tilting of the Earth on its axis exposes the planet to different levels of sunlight, this in turn causes temperature variations and results in what is known as seasons.
The axis