Now that the Solar Radiation and Climate Experiment, SORCE, is in Year 4, I summarize what we’ve been learning of solar variability. Examples range over wavelengths from 0.1 to 2400 nanometers, and over timescales from minutes (solar flares) to years. For the Sun’s total irradiance, or TSI, a comparison of SORCE results to the ACRIM series begun in 1980 shows improvements in knowledge of the absolute value of TSI, and its 11-year cycle, but it also raises a conundrum: How might the Sun have changed since pre-industrial times, indeed since Galileo first observed sunspots and determined the Sun’s rotation period, in 1610? The answer is crucial for distinguishing that part of global warming due to human activity, from that due to natural variability, since the principal external climate driver is the Sun. I show that the Moon holds the answer to this climate conundrum, since the pre-industrial solar scenarios used by IPCC can be distinguished using a high precision measurement of the temperature profile of the upper 10 meters of lunar regolith. The Lunar Borehole experiment would be a fitting follow-on to the legacy of Apollo’s initial Heat Flux Experiment. Finally, changing our focus from the Sun and Moon to Central America, I describe my activities and results as a U.S. State Department ”Embassy Science Fellow“ during Jan-Feb 2007. I discuss how that work relates to NASA’s Google partnership, to the NASA SERVIR project, to the upcoming NASA TC4 field campaign, and to the international Group on Earth Observations, or GEO. This discussion is timely not only because of NASA’s TC4 deployment out of San Jose in Jul-Aug, but also since several from NASA will be participating in the ”International Symposium on Remote Sensing of the Environment“ ISRSE-2007, during June 24-29.