after playing about with the ENV I have some observations that may be controversial
the temperature reading seems to be about 3deg too high, this may be because the sensor is on the board right above the MKR board
if you wanted to use the light sensors at the same time as the temperature sensor you cannot! you wont be wanting a thermometer in direct sunlight but you do want the light sensors in direct sunlight...
UVA, UVB and UV index will not work under glass so you need an enclosure that allows light to pass, its not going to work in a greenhouse
you can get lumens under glass but then again you want to be taking temperature in the shade
so if your thinking of using this board for a greenhouse project or any other environmental project then you probably cannot use half the sensors at any one time
so whats the purpose? remember this is $30~