Since the early days of the COVID-19 pandemic, the search for the origins of the virus has been hampered by politics. But there must be a full investigation into the possibility that the virus emerged from a laboratory using US-developed techniques.
call for an investigation into research practices that could have led to the coronavirus's emergence in China.
发自加纳纳卡维-托奥斯/阿拉巴马州奥本——在去年11月召开的《联合国气候变化框架公约》第26次缔约方大会(COP26)上,世界各国领导人承诺会拿出数十亿美元经费资助可持续耕作和农业的相关研究。鉴于气候变化正在破坏世界各地农民的收成,全球饥荒程度一路上升,这堪称一个正当其时的承诺。
对于那些顶着日晒雨淋在地里刨食的非洲小农来说,这些承诺尤其关系重大。这些农民过去依赖的可预测天气模式已经不复存在了。去年加纳和邻近西非国家的降雨延后致使播种延迟。随后生长季节结束时的异常暴雨又阻碍了收割。在东非,由更热更潮湿气候条件催生的蝗虫群吞噬了大片的农作物。
非洲的农民都指望世界领导人在缔约方大会上的会面能启动一些减轻气候危机最恶劣影响的措施。虽然各界在格拉斯哥做出的承诺为有意义的行动奠定了基础,但这些减少温室气体排放的承诺可能无法达到将全球升温幅度限制在相对于工业化前水平1.5摄氏度的要求。
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