Global warming might seem like a mechanic boom after all milder temperatures in more carbon dioxide and nitrogen should feed flower. But ten years study has found that any initial positive effect on plants from climate change may soon disappear. The report in the journal Nature Climate Change. Researchers transplanted vegetation from four grass land ecosystems to lower warmer elevations. They also motivate the precipitation at the transplants sites based on auto rain for estimates. For the first year, the plants did agree producing more biomass and churning more oxygen for us. But the productivity went down for the rest of the decade, what happened? Warming did speed up the nitrogen cycle which should have increased nitrogen's ability as plant fertilizer. But lot of the nitrogen left the soil through run off or uptaken to the atmosphere. In addition productive native plants begin to lose out species that thrive at higher temperatures but less productive than the natives. Warmers temperature may spur immediate growth but in the long term we can't expect plants to like a hot.