Planetary Defence
Planetary defence [Major] by Iczer
'No one's leaving just yet.'
The character can envelop the whole world with a shield of invisible but tangible energy in order to protect the planet from unwanted intrusion.
The shield has an SDC equal to one million per level, and sits around the Karman Line (roughly 100 kilometres, 62 miles or 328,000 feet and is the area considered to be the end of our upper atmosphere). It has no noticable effect on the weather or earth's climate conditions, and is generally undetectable except to radar or sonar imagery (or other effects that can dteect physical but invisible barriers).
It takes 5 minutes to create the shield, which can be placed over as little as 10% of the earth's surface, or as much as 100%. The shield can also allow one way permeability (will let the space shuttle out, but not incoming meteors).
The shield lasts for as long as it is maintained, plus 10 minutes per level. Maintaining the shield is distracting and fatiguing. The character is at -1 attack, -20% spd, -10% to skill use and -1 to all combat rolls while maintaining the shield. after the character's PE in minutes, he begins fighting exhaustion, and his penalties double (they do not vanish until he rests). every multiple of his PE in minutes after that he must make a saving throw vs Fatigue (14+, plus one for every extra check he has already made). Failure means that he must stop maintaining the shield or pass out for 2D6 minutes.
The character can feel every object that interacts with his shield, and he can make educated guesses as to what each object is.
At 4th level, the character can block unnusual energies from passing through the shield. Though he cannot affect normal background levels of sunlight, he can dampen solar flare energy by 80% and scramble sattelite communications.
The protective field has another unnusual effect. While it is active, it blocks dimensional travel on or off the planet. Normal teleportation is scrambled as well, dropping ranges by 60%. The character can choose not to affect these things if he knows to.
The SDC of the shield recovers at a rate of 1,000 per minute
