COP28 talks in Dubai overrun host-set deadline without fossil fuel deal UN climate talks in Dubai on Tuesday ran past a host-imposed deadline for a deal as at-risk nations voiced fury over a proposed compromise that stops short of phasing out fossil fuels. Originally scheduled to end around midday, COP28 climate summit was hurtling towards overtime on Tuesday, with negotiators awaiting a new draft deal after many countries criticised a previous version as too weak because it omitted a "phase-out" of fossil fuels.