Greenery of the planet is probably lesser harmful gases in the atmosphere, more trees on the planet, controlled natural disasters including temperatures of the planet.
And technology probably means silicon chips, which are harmful for the atmosphere with all its ingredients of sesame and such stuff.
How is it possible to combine these two things?
It is possible to make a planet greener with the technology, if it is aided with mighty brains of smart people working for the welfare of the planet.
Green technological products can range from using bio-fuel in the cars to LED bulbs in homes. Producing electricity from renewable sources, switching off TV and computer monitors when they are in standby mode, can also contribute a lot to the greenery of the planet. Fitting solar panels on houses for producing electricity for domestic purposes, using cycles instead of cars whenever possible, all come under technological efforts for helping the planet against green house gases