You can BURN: If you burn PLANET you get a Hive account@cleanplanet upvote on HIVE BLOCKCHAIN
Proportionaly you can burn 1 to 1000 PLANET...
1000 PLANET burnt -> 100% upvote (today +0.700 HIVE (50/50) + curation trail)
400 PLANET burnt -> 40 % upvote

To burn PLANET TOKEN:
Go on hive-engine.com and send the amount of PLANET to Hive account@null
Just copy-paste the link you want to see being upvoted in memo