Za hlubokou dekarbonizaci

NEW YORK – Pohleďme, co se minulý měsíc po celém světě dělo. Na přední stránky novin pronikla vlna veder v Austrálii, když teploty dosahující 45° Celsia přerušily tenisový turnaj Australian Open. Extrémní sucho v Kalifornii donutilo tamního guvernéra vyhlásit stav ohrožení. Rozsáhlé povodně v Indonésii připravily o život desítky lidí a desetitisíce dalších vyhnaly z domovů. Uhelný smog v Pekingu přiměl tamní obyvatele zůstat doma, uzavřel dálnice a odklonil lety. Takové události jsou každodenní výstrahy světu: probuďte se, než bude pozdě.

Vstoupili jsme do věku udržitelného rozvoje. Buď s planetou uzavřeme mír, anebo rozvrátíme svou těžce vydobytou prosperitu. Volba se zdá jasná, ale podstatné jsou činy, ne slova. Lidstvo dál kráčí po cestě zmaru, vedeno krátkodobou hamižností a nevědomostí.

Globální environmentální krize z velké části (byť ne zcela) plyne z celosvětového energetického systému založeného na fosilních palivech. Přes 80 % veškeré primární energie na světě pochází z uhlí, ropy a plynu. Když se tato fosilní paliva spalují, uvolňují oxid uhličitý, který pak mění klima planety. Fyzikální základy těchto dějů jsou známé už víc než sto let.

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