for the year-to-date, the earth is seeing its 5th-warmest start to the year.
for the year-to-date, the earth is seeing its 5th-warmest start to the year.
tropical year:0
a tropical year (also known as a solar year) is the time that the sun takes to return to the same position in the cycle of seasons, as seen from earth; for example, the time from vernal equinox to vernal equinox, or from summer solstice to summer solstice.