The change in orbital shape was already known as one of the Milankovitch cycles [1]. This study seems to give us the most precise measurement.<p>In the context of climate change, when Earth's orbit becomes more eccentric (our path over the next 200k years) seasonal changes increase in magnitude.<p>[1] <a href="https://en.wikipedia.org/wiki/Milankovitch_cycles#Orbital_shape_(eccentricity)" rel="nofollow">https://en.wikipedia.org/wiki/Milankovitch_cycles#Orbital_sh...</a>