original: Events of 1816 January – June Known as the "Year Without a Summer" in the northern hemisphere due to global cooling caused by the Mount Tambora volcanic eruption that had occurred in 1815.
simplifications: Known as the "Year Without a Summer" in the northern hemisphere due to global cooling caused by the Mount Tambora volcanic eruption that had occurred in 1815. The "Year Without a Summer"  in 1816 happened when Mount Tambora erupted in 1815, causing cooling in the northern hemisphere. 1816 is called the "Year Without Summer." This is due to global cooling. The event was caused by the Mount Tambora's volcanic eruption that had occurred in 1815. Events of 1816 January – June: Known as the "Year Without a Summer" in the northern hemisphere. This was due to the cooling of the earth caused by the Mount Tambora volcanic eruption in 1815. Events of 1816 January – June The 1815 Mount Tambora volcanic eruption caused global cooling and the "Year Without a Summer" in the northern hemisphere. The year 1816 was known as the "Year Without a Summer" because of global cooling caused by a volcanic eruption. The Mount Tambora volcanic eruption of 1815 caused a global cooling in the normal hemisphere known has "Year Without a Summer" from January to June1816. Called the "Year Without a Summer", the north half of the earth saw global cooling due to the Mount Tambora  volcano going off in 1815. Mount Tambora's volcanic eruption led to global cooling in 1815. 1816 was known as the "Year Without a Summer" in the northern hemisphere. "Year Without a Summer"  was and even that occurred in the northern hemisphere due to global cooling caused by the Mount Tambora volcanic eruption that had occurred in 1815.