Tessa Khan lauya ce da ke zaune a Ingila. Ta kasance mataimakiyar darakta ta cibiyar shigar da kararraki kan yanayi, wacce ke tallafa wa shari'o'in da suka shafi sauyin yanayi da adalci a kan yanayi. Khan ta bayar da hujjar cewa gwamnatocin kasashe suna sane suka ci riba daga hawan matakan carbon dioxide kuma suka haifar da illa ga muhalli, gami da kasancewa wani bangare na mahimmin yanayin duniya. A Tailandia tayi aiki ga wata kungiyar kare hakkin dan adam ta mata. Yayin da take can a shekarar 2015 ta samu labarin hukuncin da wata kotu ta yanke a Hague inda ta umarci Netherlands ta rage hayakin da take fitarwa. Ganin wannan lamarin ne ya ba shi kwarin gwiwa, Khan ya koma London don shiga kungiyar lauyoyi ta Urgenda Foundation a shekarar 2016. \ Ta tallafawa shari'oi a cikin Netherlands da Ireland waɗanda suka yi nasarar ƙalubalantar dacewar shirye-shiryen gwamnati don rage hayaƙi. A watan Disamba 2019, a cikin Netherlands Netherlands. Shari'ar Gidauniyar Urgenda, Kotun Koli ta Netherlands ta umarci gwamnati da ta kara karfin tashoshin samar da makamashin kwal tare da kula da kusan Yuro biliyan 3 na saka jari don yanke hayakin da yake fitarwa.