are required to guarantee the effective enjoyment of such rights, it is difficult to see how these obligations can be fulfilled without at the same time ensuring the protection of the right to a clean, healthy and sustainable environment as a human right. "

-detoxify people’s bodies and the planet (A/HRC/49/53); and
-protect and restore the world's oceans (A/HRC/58/59).
These are obligations, not options.

-phase out the use of coal, oil and natural gas by investing in renewable energy, energy storage and energy efficiency and assist climate vulnerable nations in adapting to the climate emergency (A/74/161);
-conserve, protect and restore biodiversity (A/75/161);

-improve air quality by reducing both outdoor and household air pollution (A/HRC/40/55);
-ensure everyone has access to safe and sufficient water (A/HRC/46/28);
-transform industrial agriculture to produce healthy and sustainable food (A/76/179);

quarrying deep, if necessary, into its very bedrock. Seams of untold strength and richness lie therein, waiting to be quarried. Do these sources contain principles mightier than might alone, wherewith to govern the mightiest weapon of destruction yet devised?"
www.icj-cij.org/sites/defaul...

I like this quote from Justice Weeramantry, from an earlier advisory opinion on the legality of using nuclear weapons:
"It is thus the gravest of possible issues which confronts the Court in this Advisory Opinion. It requires the Court to scrutinize every available source of international law, ...