December 21, 2012, doesn't signify a specific date for disaster. To the Mayans it unambiguously marked the end of one of their cyclic calendars denoting a general time of rebirth for mankind. It is simply coincidental that other astronomical influences may be in evidence for heralding a series of global catastrophes at this time.
On December 21, 1998, our Sun, as viewed from our planet, aligned with the black hole at the galactic center. As we approached this occurrence - and since then - earthquakes, volcanoes, and severe weather events, have been on the increase. The Milky Way Galaxy is a disc, like our solar system. The plane, or disc, emits radiation (of several kinds), and as we become centered on these energies they are focused with a greater intensity. This is similar to aligning a magnifying glass perpendicular to the rays of the Sun. Combined with certain positions of the planets and the Moon, a triggering type of stress is fixed on the Earth's tectonic plates.
Presently, Jupiter and Saturn are pulling the Earth and Sun in opposite directions. Add in the galactic center energies, with certain angles of the Sun and Moon, and you have a dynamic situation. The Sun's solar activity is also amplified by Saturn and Jupiter, and we know the resulting solar flares affect the Earth's magnetosphere and weather. Scienctists have determined that the solar wind alone, through it's electrical and magnetic influences, create the auroras. It's reasonable to speculate the Earth is also influenced by changes in flare boosted solar winds in ways not confirmed by modern science. I surmise, that the gravity of the planets, like obstacles in a stream, potentise these solar currents. I see evidence that it is on the verge of being discovered.
In conclusion, the Earth is 6° past alignment with the black hole. Gradually, and as Jupiter and Saturn pass opposition, things will improve. Our next challenge will be on July 6, 2020, when Jupiter and Saturn are conjunct, aligned with the Moon and Earth opposite the Sun, and in the general vicinity of the Galactic Center.
7-6-2020, from Solar System Scope