It Doesn't Have to Be This Way, by Alistair Mackay

Spanning from present day until the near future, this novel tells the story of three men facing the rapid unravelling of their world, due to cataclysmic climate collapse. Luthando’s environmental activism leads to a clash with the government. His life partner, Viwe, becomes embroiled in religious end-of-days fanaticism. And their friend Malcolm worries that his work in biotech augmentation will be used for sinister purposes. A story about resilience and our capacity for love in the face of fear.