During the week of May 13th, the CO2 level at the Mauna Loa Observatory in Hawaii topped 400 ppm repeatedly. Daily levels of CO2 can vary due to weather, and there are seasonal trends as well.
Haiti Earthquake Resources from IRIS
IRIS (Incorporated Research Institutions for Seismology) has posted a group of resources for educators about the Haiti earthquake.
A major earthquake occurred Tuesday in the boundary region separating the Caribbean plate and the North America plate. This plate boundary is dominated by left-lateral strike slip motion and compression, and accommodates about 20 mm/y slip, with the Caribbean plate moving eastward with respect to the North America plate.
IRIS (Incorporated Research Institutions for Seismology) has posted a group of resources for educators about the Haiti earthquake.
