Martian soil perchlorate readings being caused by terrestrial sources, which at the time were thought could have migrated from the spacecraft either into samples or the instrumentation. However, each new lander has confirmed their presence in the soil locally and the "Mars Odyssey" orbiter confirmed they are spread globally across the entire surface of the planet. While our understanding of Martian soils is extremely rudimentary, their diversity may raise the question of how we might compare them with our Earth-based soils. Applying an Earth-based system is largely debatable but a simple option is to distinguish the (largely) biotic Earth from the abiotic
Sustain Our Planet a variety of energy and sustainability assessments that determine the energy usage and carbon emissions generated as a result of current and future business activities. Sustain Our Planet works with businesses to calculate, track, and reduce their carbon footprint. In 2009 Sustain Our Planet launched its Carbon Impact Assessment which analyzes energy usage and the overall environmental impact of a client’s business operations. This includes the calculation and analysis of the business' carbon footprint that is broken down by energy use, business miles driven, and company air travel. The Carbon Impact Assessment is a comprehensive report that includes a detailed