Changes

*'''Deep ocean sediment''': A 1999 reconstruction of ocean current patterns based on the granularity of deep ocean sediment concluded there was a Roman Warm Period that peaked around 150 AD.<ref name=Bianchi/>

*'''Deep ocean sediment''': A 1999 reconstruction of ocean current patterns based on the granularity of deep ocean sediment concluded there was a Roman Warm Period that peaked around 150 AD.<ref name=Bianchi/>

*'''Mollusk shells''': An analysis of oxygen isotopes found in mollusk shells in a Icelandic inlet concluded in 2010 that Iceland experienced an exceptionally warm period from 230 BC to 40 AD.<ref>{{cite journal |author=Patterson WP, Dietrich KA, Holmden C, Andrews JT |title=Two millennia of North Atlantic seasonality and implications for Norse colonies |journal=Proc. Natl. Acad. Sci. U.S.A. |volume=107 |issue=12 |pages=5306–10 |year=2010 |month=March}}</ref>

*'''Mollusk shells''': An analysis of oxygen isotopes found in mollusk shells in an Icelandic inlet concluded in 2010 that Iceland experienced an exceptionally warm period from 230 BC to 40 AD.<ref>{{cite journal |author=Patterson WP, Dietrich KA, Holmden C, Andrews JT |title=Two millennia of North Atlantic seasonality and implications for Norse colonies |journal=Proc. Natl. Acad. Sci. U.S.A. |volume=107 |issue=12 |pages=5306–10 |year=2010 |month=March}}</ref>

==See also==

==See also==

[[Category:Environmentalism]]

[[Category:Environmentalism]]

[[Category:Warm Periods]]

[[Category:Warm Periods]]

[[category:Ecology]]

[[Category:Ecology]]