The brownish-grey algae that darken the Greenland ice sheet in summer cause the ice to melt faster, but only recently have scientists measured these blooms in the field, and only at few sites. To measure algal blooms across large regions and understand their effects on melting over time, scientists are now turning to space.

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Concentration of dinitrogen oxide – also referred to as nitrous oxide – in the atmosphere increases strongly and speeds up climate change. In addition to CO2 and methane, it is the third important greenhouse gas emitted due to anthropogenic activities.

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