内容摘要：Roy said that when they entered their civil partnership, it allowed family members to attend - some of whom died before they would marry seven years later.

Roy said that when they entered their civil partnership, it allowed family members to attend - some of whom died before they would marry seven years later.

The refrigerants typically used in cooling today are hydrofluorocarbons (HFCs), a group of synthetic gases with high global warming potential. HFCs are much more potent than carbon dioxide.So one option is to replace the refrigerants with more climate-friendly versions. But the candidates with the lower global warming potential, also have problems.

For instance, propane is highly flammable. Ammonia is toxic. Carbon dioxide works at high pressures, requiring specialised equipment.But as many places phase down HFCs, alternative refrigerants will remain important.Ms Sachar says that we still need refrigerants because for home cooling, "A/Cs as we know them today will continue to be the solution, at least for the next decade or so".

In the longer term, some scientists are looking toward cooling devices that don't need liquid refrigerants at all.Lindsay Rasmussen, who manages building and land-use projects at the energy non-profit RMI, calls these "revolutionary technologies".

A major set of revolutionary cooling tech is solid-state cooling. This uses solid materials and some sort of additional force to induce temperature changes. That extra force could be pressure, voltage, magnets or mechanical stress.

Ms Rasmussen says that solid-state devices can go further than incremental improvements because "not only do they eliminate those super-polluting refrigerants, but they can also offer improved efficiency to the systems".In August, the Trump administration is also expected to revoke TPS protections for tens of thousands of Haitians.

The ruling on Monday by the Supreme Court marks the latest in a series of decisions on immigration policies from the high court that the Trump administration has left them to rule on.Last week, the administration asked the Supreme Court to end humanitarian parole for hundreds of thousands of Cuban, Haitian, Nicaraguan and Venezuela immigrants.

Along with some of their successes, the Trump administration was dealt a blow on Friday when the high court blocked Trump from using the 1798 Alien Enemies Act to deport immigrants in north Texas.Trump had wanted to use the centuries-old law to swiftly deport thousands from the US, but Supreme Court judges questioned if the president's action was legal.